A salesman who is on the road visiting clients thinks that, on average, he drives the same distance each day of the week. He keeps track of his mileage for several weeks and discovers that he averages 122 miles on Mon- days, 203 miles on Tuesdays, 176 miles on Wednesdays, 181 miles on Thursdays, and 108 miles on Fridays. He wonders if this evidence contradicts his belief in a uni- form distribution of miles across the days of the week. Explain why it is not appropriate to test his hypothesis using the chi-square goodness-of-fit test.

Answer:

The conditions are not met.

Step-by-step explanation:

The conditions for the chi square test for goodness of fit are

1) the sample is a random sample

2) the variable under study is categorical

3) all expected value of the number of sample observations are greater or equal to 5.

A)The observations must be independent

B) for 2 categories the expected values must be at least 5

C) for the 3 categories the expected values must be at least 1 and no more than 20% may be smaller than 5

The observations given may not be independent  i.e  have equal chances of occurrences or are maybe dependent on each other in the sense that there maybe a limit for his traveling mileage or the a limit for petrol ( fuel ) usage . So if he is required to drive 500 miles in a week each day mileage depends on the other day mileage .

Also we are given the information that keeps track of his mileage for several weeks, but we are not sure if several   refers to more than 5 .

As both conditions are not clearly satisfied it is not appropriate to test his hypothesis using the chi-square goodness-of-fit test.

The sample must also be a random sample.

Here he has taken the mean of all the days.

what is question a????

I need help I’m kind of stuck on this question

A rectangle with area
126
square inches has a length that is four less than two times the width. Find the length and the width of the rectangle.

Help help help help help help help

A university law school accepts 7 out of every 12 applicants. If the school accepted 686 students, find how many applications they received.
The school had applicants

Help!! I’ll give brainliest!

please help ive been stuck on this all day math help pls

Four friends are told that the average (mean) of their grades for their favorite class is 84.5%.



Anthony got 86%, Jasmine got 92%, and Kaitlyn got 70%.

Jonathan's grade was not revealed.
What grade did Jonathan get?
PLEASE HELP SOON

Someone help me please-

7/9+5/9 as a fraction in simplest form

SOMEONE PLZ HELP ME

91 is 10% of what number?
would i get the answer of : 91 already rounded to the nearest hundredths??? these formulas are confusing me help (using proportions to solve percent)

bestieeee- please help


:)

10 POINTS!!! NO LINKS!! I WILL REPORT BUT PLEASE SOMEONE HELP ME The table below shows the number of students in four schools with grade
point averages in various ranges. The grade point averages of the students in
which school represent a U-shaped distribution?

Last year Tyler used 60 feet of fencing to enclose a rectangular garden with an area of 200 ft². This year Tyler plans to use 120 feet of fencing to enclose a garden similar in shape. What will be the area of the garden?

HELP PLEASE IM ON A TIMER!!!
To buy a PS5 bundle, Amir borrowed $850 for 2 years at a simple interest rate of 2.5%. How much did he have to pay back in all? A.$42.50 B.85.00 C.$850 D.$892.50

Which set of integers is in order from least to greatest? a. 1, -2, 3, 4, -5. b. -5, 4, 3, -2, 1. c. -2, -5, 1, 3, 4 d. -5, -2, 1, 3, 4.

can someone help me asap​

A man was 62 years old 18 years ago.what Will be his age in 6 years time​

Will mark brainliest

Graph points A(-1, -1), B(-1, 3) and C(3, 2) on the coordinate plane. What is the area of triangle ABC? A) 7 square units B) 8 square units C) 14 square units D) 16 square units

HELP.
Which equation is represented by the graph below?
Y=In x-3
Y=In x-4
Y=e^x-3
Y=e^x-4

What is the slope of the line through (–5,2) and (6,7) in the standard (x,y) coordinate plane?

9
9

5
5

-5
-5

5
11
5 over 11

−
5
11

(15 point) Which set of ordered pairs are solutions to the equation y = 10x?

Khan academy again, please help

1. A baseball coach graphs some data and finds the line of
best fit. The equation for the line of best fit is
y = 0.32x - 20.51, where x is the number of times at bat and
y is the number of hits.
How many hits should he expect from a player who is at bat
175 times?
A) 35 hits
B) 49 hits
C) 609 hits
D) 62 hits

PLEASE HURRY I WILL GIVE BRAINLIEST!!!!!!
Jessie borrowed $15,000 for 15 years to make some improvements to his house. If he repaid a total of 20,625 at what simple interest rate does Jessie borrow the money? A.1.5% B.1.75% C.2.25% D.2.5%

Some candy bars are on a plate. Each candy bar is the same size. Nine friends are going to share the candy bars equally. Each friend gets one-half a candy bar. How many candy bars are on the plate? Between what two whole numbers does the amount of candy bars shared lie? Show all your mathematical thinking.

ANSWER FOR BRAINLIEST:
The mean of Tom’s scores on 5 tests was 77.4%. The scores on his first four tests were 88, 77, 70, and 72. What was Tom’s score on his fifth test?

0.1 divided by 7 pls answer I need this by tomorrow