Homework Help is Here – Start Your Trial Now!
Math
Statistics
give the hypotheses

give the hypotheses

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question
Question 9: give the hypotheses.
A statistician was getting his car serviced at a dealership. He wondered if the average service cost for females was higher than for males. A random sample of 110 women had an average service cost of $240 with a standard deviation of $20. A random sample of 120 men had an average service cost of $180 with a standard deviation of $100. Define the first population as men and the second population as women. Using a 5% significance level, determine if the average service cost for women is higher than men. Give the hypotheses. O Null: There is no average difference in what men and women pay for service costs at a dealership. Alternative: Women pay an average service cost higher than men. Null: There is no average difference in what men and women pay for service costs at a dealership. Alternative: Men pay an average service cost higher than women. O Null: There is no average difference in what men and women pay for service costs at a dealership. Alternative: The average service cost for men and women is not equal.
Transcribed Image Text:A statistician was getting his car serviced at a dealership. He wondered if the average service cost for females was higher than for males. A random sample of 110 women had an average service cost of $240 with a standard deviation of $20. A random sample of 120 men had an average service cost of $180 with a standard deviation of $100. Define the first population as men and the second population as women. Using a 5% significance level, determine if the average service cost for women is higher than men. Give the hypotheses. O Null: There is no average difference in what men and women pay for service costs at a dealership. Alternative: Women pay an average service cost higher than men. Null: There is no average difference in what men and women pay for service costs at a dealership. Alternative: Men pay an average service cost higher than women. O Null: There is no average difference in what men and women pay for service costs at a dealership. Alternative: The average service cost for men and women is not equal.
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS