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The CEO of a large company claims that 85% of customers are repeat customers. They define a repeat customer as someone who makes more than one purchase per month. A random sample of 200 customers shows that 162 are repeat customers. Do these data provide convincing evidence at the 5% significance level that less than 85% of customers of this company are repeat customers?

If needed, use the z-table to answer the question.

What is the value of the test statistic? (Round to 2 decimal places.)


What is the P-value of the test? (Enter 4 decimal places.)

User Mr Hery
by
4.1k points

2 Answers

5 votes

Answer:

-1.58

0.0571

Explanation:

EDGE2022

User Dominik Roszkowski
by
4.4k points
2 votes

Answer:

-1.58

0.0571

Got it right on edge:)

User Aliaxander
by
3.6k points