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A random sample of 100 households and collect data on each household’s income. You find a...

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Statistics

A random sample of 100 households and collect data on eachhousehold’s income. You find a sample income standard deviation of$160,000. You want to test the null hypothesis that the populationmean income is $100,000, using a p-value of 0.05, against thealternative that it does not equal $100,000.

You will:

A. Reject the null hypothesis if the sample mean is $130,000

B. Fail to reject the null hypothesis if the sample mean isbetween $80,000 and $120,000

C. Fail to reject the null hypothesis if the sample mean is lessthan $120,000

D. Accept the null hypothesis

Answer & Explanation Solved by verified expert
4.3 Ratings (786 Votes)
The answer isB Fail to reject the null hypothesis if the sample meanis between 80000 and 120000ExplanationRejection RegionBased on the information    See Answer
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