Sweet corn of a certain variety is known to produce individual ears of com with a mean weight of 8 ounces. A farmer is testing a new fertilizer designed to produce larger ears of com, as measured by their weight. He selects a random sample of 10 ents of com and determines their weight (in ounces). The data are as follows: 8.25 7359,05 8.00 8.25 8.75 9.00 7.60 8.45 8.55
Do the data provide convincing evidence at the a=0.05 level that the fertilizer had a positive impact on the weight of the com cars?

Answers

Answer 1

Answer:

We can conclude that there is significant evidence that dL fertilizer has a positive impact on larger weight of coms

Step-by-step explanation:

Given the data :

8.25 7.35 9.05 8.00 8.25 8.75 9.00 7.60 8.45 8.55

Using calculator :

Mean, x = 8.325

Standard deviation, s = 0.560

Null hypothesis :

H0: μ = 8

H1 : μ > 8

The test statistic,

(x - μ) / (s/sqrt(n))

(8.325 - 8) / (0.56 / sqrt(10))

0.325 / 0.177

= 1.835

The Pvalue ; using the Tstatistic calculator ;

α = 0.05 ; df = 10 - 1 = 9

Pvalue = 0.04985

Reject H0 ; if Pvalue is < α

Hence, since 0.04985 < 0.05 ; we reject H0

. We can conclude that there is significant evidence that dL fertilizer has a positive impact on larger weight of coms


Related Questions

Please help me do not and please give me an explanation too please. No link please

Answers

Answer:

I'm pretty sure it's D.40 because it's the biggest number and 6+13+17 is only a bit bigger than 24. Also, all the numbers add up to 60 and 27 is only a bit less than 50% of 60

What is the area of the triangle? ​

Answers

Answer:

10

Step-by-step explanation:

1/2×(-2-(-7))×(6-(-4))

Dimple volunteered 32 hours last month at a local animal shelter. This is 20% of the total hours that she has volunteered this year. How many hours did she volunteer this year?

Answers

If she was to volunteer 32 hours and it is worth 20%, then that means 32 hours is 1/5 of her yearly hours. If you were to multiply her volunteer hours by five, then you are getting the year number of hours she has volunteered.

32 x 5 = 160

So, she volunteers 160 hours this year.


Sasha is the manager at a factory.
Last weekend 15 employees assembled 390 identical wardrobes.

Sasha wants 1200 of these wardrobes to be assembled next weekend.

How many employees does Sasha need next weekend?
You must show your working.

Answers

The number of employees Sasha would need next weekend are = 46

Calculation of total employees

For a weekend, 15 employees = 390 wardrobes

The number of wardrobes to be assembled next weekend= 1200

If 390 wardrobes = 15 employees

1200 wardrobes = X employees

Make x the subject of formula,

X = 1200 × 15/390

X = 18000/390

X = 46

Therefore, the number of employees Sasha would need next weekend are = 46

Learn more about employees here:

https://brainly.com/question/12831236

how do I solve "k−26.5=99.1"

Answers

Answer: =125.6

Step-by-step explanation:

Add 26.5 to both sides of the equation

Simplify


In the diagram, MQ is perpendicular to PR, and AMPR is isosceles. What is the measure of /MQR?

Answers

Answer:

90 I hope this helps good luck

Answer:

Its 90 degrees but I am not sure what you are asking

Step-by-step explanation:

If a class of 27 students had a mean of 72 on a test, interpret the mean of 72 in the sense of a fair share measure of the center of the test scores.

Answers

The fair share measure would mean that the score of 72 would be the score all 27 students got on the test if they all had the same score.

A fair share measure of the center of the test scores is 72 be the score all 27 students got on the test.

We have given that

a class of 27 students had a mean of 72 on a test,

What is the fair share?

An equitable or reasonable portion or share of something

The fair share measure would mean that a score of

72 be the score all 27 students got on the test.

If they all had the same score.

Therefore 72 was the score all 27 students got on the test.

To learn more about the fair share visit:

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What is the degree of 4x6 - 2x3 + x-3 + x3?
Answer here
What’s the answer

Answers

Answer:

=4x6−x3+x−3

Step-by-step explanation:

Answer:

The degree of this polynomial is 6

Step-by-step explanation:

You write the greatest exponent

According to the admissions director of a certain college, approximately 11% of the 250 freshmen admitted had
applied using the early decision option. Suppose that we took random samples of 20 freshmen from this
population and computed the proportion of freshmen in each sample who had applied using the early decision
option. We can assume the admissions director's claim is true.
What will be the shape of the sampling distribution of p?

Answers

Answer:

Skewed to the right

Step-by-step explanation:

We have a right-skewed sampling distribution because the population proportion is so extreme relative to the sample size that there are fewer than 10 expected successes per sample.

The shape of the sampling distribution of p is skewed to the right because there are fewer than 10 projected successes per sample.

What is a histogram?

It is defined as the numerical data representation in the graph with the help of a bar without space. The histogram gives an idea about the data's approximate distribution.

We have:

11% of the 250 freshmen admitted had applied using the early decision option.

Total number of samples = 20

It is given that the admissions director's claim is true.

As we can see from the data shape of the sampling distribution of p is skewed to the right because there are fewer than 10 projected successes per sample since the population proportion is so excessive in comparison to the sample size.

Thus, the shape of the sampling distribution of p is skewed to the right because there are fewer than 10 projected successes per sample.

Learn more about the histogram here:

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i just don’t understand the math

Answers

I believe the answer is 6

Answer:

5 out of 25

Step-by-step explanation:

The amount of apple fritters is 2 out of ten orders. 2/10 simplifies to 1/5. If u put 1/5 next to x/25 on a piece of paper, u can see that 5 times 5 will give u 25. This means that u should also multiply 1 times five to find the value of x. 1x5=5. So, 5 out of 25 pastries should be apple fritters. Hope this is right, let me know!

Pleaseeeeeeeeee help

Answers

Shape: Right rectangular prism

Solved for Volume

Formula: V=whl

Formula 2: L x W x H

How to solve volume Right rectangular prism?

To find the volume of a rectangular prism, multiply the length x width x height. In this case the answer will end up as 105.

Solution: V=whl=3·7·5=105

Answer: V=105

Question 13 please help& give explanation if possible thank u

Answers

Answer:

Step-by-step explanation:

After school Philippe spent 1 3/4 hours at baseball practice, 2 1/4 hours on homework, and 1/4 hour getting ready for bed. About how many hours after school will he be ready for bed. Explain

Answers

Answer:

4 hours. 1 3/4 is about 2, and 2 1/4 rounds to 2. 1/4 would round to 0, but it would not affect the estimate's accuracy much because we rounded up by 1/4 on 1 3/4 already. Philipe spent about 4 hours on activities.  

Step-by-step explanation:

Pilot Shop is a catalog business providing a wide variety of aviation products to pilots throughout the world. Maynard Shephard, the recently hired assistant controller, has been asked to develop a cost function to forecast shipping costs. The previous assistant controller had forecast shipping department costs each year by plotting cost data against direct labor-hours for the most recent 12 months and visually fitting a straight line through the points. The results were not satisfactory.
After discussions with the shipping department personnel, Maynard decided that shipping costs could be more closely related to the number of orders filled. He based his conclusion on the fact that 10 months ago the shipping department added some automated equipment. Furthermore, he believes that using linear regression analysis will improve the forecasts of shipping costs. Cost data for the shipping department have been accumulated for the last 25 weeks. He ran two regression analyses of the data, one using direct labor-hours, and one using the number of cartons shipped. The information from the two linear regressions follows:
Regression 1 Regression 2
Equation SC = 804.3 + 15.68DL SC = 642.9 + 3.92NR
R-squared .365 .729
Standard error of the estimate 2.652 1.884
t-value 1.89 3.46
where:
SC = total shipping department costs DL = total direct labor-hours
NR = number of cartons shipped
Required
1. Identify which cost function (regression 1 or regression 2) Pilot Shop should adopt for forecasting total shipping department costs and explain why.
2. If Pilot Shop projects that 600 orders will be filled the coming week, calculate the total shipping depart- ment costs using the regression you selected in requirement 1.
3. Explain two or three important limitations of the regression you selected in requirement 1, and identify one or two ways to address the limitations. Specifically include in your discussion the effect, if any, of the global nature of Pilot Shop’s business.

Answers

Step-by-step explanation:

1. The second regression should be adopted for forecasting because  the R² is higher in this regression and the standard error is also smaller. the t value is also better in this regression compared to the first

2. Using regression 2, the estimated shipping cost is to be calculated here.

= 642.9 + 3.92NR

NR = 600

642.9 + 3.92X600

= 642.9 + 2352

= $2994.9

This is the estimated shipping cost.

3. The limitations could be due to error in data, the data could be unreliable because of the presence of outliers. Pilot shop is a global business so there is another factor to adds to the limitations, as this costs of buying and shipping are affected by fluctuations in exchange rate and variations in the global market.

Which equation represents this statement and its solution?
24.63 multiplied by 3.2

Answers

Answer:

not sure

Step-by-step explanation:

lol

24.63 x 3.2= 78.816 is the statement for that problem

What is 65% of 85, rounded to two decimal places?

Answers

Answer:

55.25

Step-by-step explanation:

Please help me I really need help

Answers

I hope this helps

Answer:

2/25 of a yard

When f ( x ) = 9 x 2 + x − 5 , evaluate f ( − 4

Answers

Answer:

is that supposed to be a squared x?

9(-4)^2 + (-4) - 5 = 135

9(-4) × 2 + (-4) - 5 = -81

id.k which one is right sorry

F ( x ) = 9 x 2 + ( -4 ) - 5. 18 - 4 - 5. 12-5. 7

Laura will pay 50 dollars more in rent on her apartment in two months. If she pays 640 dollars now, what will her monthly rent be in two month's ​

Answers

Answer:

690

Step-by-step explanation:

640 + 50 = 690

PLEASE HELP IM BEING TIMED!! WILL GIVE BRAINLIEST!!!!
A 2-column table with 7 rows. The first column is labeled Time (seconds) with entries 0, 1, 2, 3, 4, 5, 6. The second column is labeled Height (feet) with entries 3, A, 6, 7, 6, 4, B.
Assuming that the throw represents projectile motion, what are the missing values in the table?

A = 5, B = 3
A = 4, B = 0
A = 4, B = 3
A = 5, B = 0

Answers

Answer:A= 24.5

B=0

Step-by-step explanation:

Answer:

The missing value in the table of the projectile motion since it assumes a parabolic curve is A = 4, B = 3

Step-by-step explanation:

sorry its late but here it is

How are area and volume similar?

Answers

Answer:

Area is the space within the perimeter of a two-dimensional figure. Volume is the amount of space inside the bounds of a three-dimensional object.

Step-by-step explanation:

Hope this will help

Answer:

Area is the space within the perimeter of a two-dimensional figure. Volume is the amount of space inside the bounds of a three-dimensional object.

Step-by-step explanation:

hope it helps

:)

what's the value of s for s + 10 = 6?

Answers

-4 is the value for s

Suzie has $2000 in a savings account. The simple interest rate is 10% each year.` How much interest will she earn in 4 years?

Answers

Answer:

800 dollars assuming it is 10 percent of 2000 dollars each year.

Step-by-step explanation:

Why do you think we need to convert normal distribution to standard normal distribution?

Answers

Answer:

The standard score (more commonly referred to as a z-score) is a very useful statistic because it (a) allows us to calculate the probability of a score occurring within our normal distribution and (b) enables us to compare two scores that are from different normal distributions

Please helpppppppppppp

Answers

5 x 3 x 7 = 105

Hope I helped you

Answer:

15 cm

Step-by-step explanation:

add 7 then 3 and 5

let f(x) = 1/x and g(x) = x² – 5x. What
two numbers are not in the domain of fºg?
Separate your answers with a comma.
Enter the correct answer.

Answers

Answer:

5,0

Step-by-step explanation:

f o g is a composite function, y values of g passed as x values into f.

f o g = 1/(x^2 - 5x)

in this case, the only way for the function to be undefined is when

x^2 -5x = 0

x(x - 5) = 0

x = 0 or x = 5

How do you write 5.13 × 10–4 in standard form?

Answers

Answer:

0.000513

Step-by-step explanation:

I hope that is useful for you :)

What is the midpoint of the line segment graphed below?
10
(123)
(5.-10)
O O A. (- / -13)
B. (-:-)
c. (2)
OD. (-25)

Answers

Option C (-7/2,-13/2)

x is less than or equal to 25.


Question options:

x ≥ 25


x > 25


x ≤ 25


x < 25

Answers

Answer:

3rd one

Step-by-step explanation:

since its less you would do this symbol: <

and it says equal to so that means you would put a line under the symbol

Why is stock data calculated using the subtraction and addition method instead of a simple moving average? PLEASE HURRY I AM TAKING A TEST

Answers

Answer:

The moving average (MA) is a simple technical analysis tool that smooths out price data by creating a constantly updated average price. The average is taken over a specific period of time, like 10 days, 20 minutes, 30 weeks or any time period the trader chooses. There are advantages to using a moving average in your trading, as well as options on what type of moving average to use. Moving average strategies are also popular and can be tailored to any time frame, suiting both long-term investors and short-term traders.

Step-by-step explanation:

One disadvantage to solving systems using substitution is that isolating a variable often involves dealing with messy fractions. There is another method for solving systems of equations: the addition/subtraction method.

In the addition/subtraction method, the two equations in the system are added or subtracted to create a new equation with only one variable. In order for the new equation to have only one variable, the other variable must cancel out. In other words, we must first perform operations on each equation until one term has an equal and opposite coefficient as the corresponding term in the other equation.

sorry it is so long, i hope this helps!

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