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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
23 Nov 2021

Given information

Instructions: For the following ten exercises,
Hypothesis testing: For the following ten exercises, answer each question.
 State the null and alternate hypotheses.
 State the p-value.
. State alpha.
. What is your decision?
 Write a conclusion.
 Answer any other questions asked in the problem.
A recent survey in the N.Y. Times Almanac indicated that  of families own stock. A broker wanted to determine if this survey could be valid. He surveyed a random sample of  families and found that  owned some type of stock.

Step-by-step explanation

Step 1.

We are given to use a left-tailed test. That’s why the alternative hypothesis has  sign. Reject the null hypothesis if   

and .

The following formula is used,

 

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