**6.7** A grocery supermarket chain is considering an outlet near a new middle-income housing development. They want to be certain that the average income is above $42,000 per year. A random sample of 36 families from the development gives a mean income of $43,500 per year with a standard deviation of $900 per year. Should they establish the outlet? Justify your answer using a 2% level of significance.
**6.7** A grocery supermarket chain is considering an outlet near a new middle-income housing development. They want to be certain that the average income is above $42,000 per year. A random sample of 36 families from the development gives a mean income of $43,500 per year with a standard deviation of $900 per year. Should they establish the outlet? Justify your answer using a 2% level of significance.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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Transcribed Image Text:**6.7**
A grocery supermarket chain is considering an outlet near a new middle-income housing development. They want to be certain that the average income is above $42,000 per year. A random sample of 36 families from the development gives a mean income of $43,500 per year with a standard deviation of $900 per year. Should they establish the outlet? Justify your answer using a 2% level of significance.
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