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,
Unlock all Textbook Solutions
Already have an account? Log in