A study is performed in San Antonio to determine whether the average weekly grocery bill per five-person family in the town is significantly different from the national average, which is $131. A random sample of 50 five-person families in San Antonio showed a mean of $133.474 and a standard deviation of $11.193. Use . a) Formulate the hypotheses. b) What is the value of the test statistic? c) What are the critical values of the test? d) Find the p-value of the test. What is your conclusion? Explain it in the context of the problem.
A study is performed in San Antonio to determine whether the average weekly grocery bill per five-person family in the town is significantly different from the national average, which is $131. A random sample of 50 five-person families in San Antonio showed a mean of $133.474 and a standard deviation of $11.193. Use . a) Formulate the hypotheses. b) What is the value of the test statistic? c) What are the critical values of the test? d) Find the p-value of the test. What is your conclusion? Explain it in the context of the problem.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
Related questions
Question
A study is performed in San Antonio to determine whether the average weekly grocery bill per five-person family in the town is significantly different from the national average, which is $131. A random sample of 50 five-person families in San Antonio showed a
a) Formulate the hypotheses.
b) What is the value of the test statistic?
c) What are the critical values of the test?
d) Find the p-value of the test.
What is your conclusion? Explain it in the context of the problem.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON