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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 report by the Gallup Poll found that a woman visits her doctor, on average, at most times each year. A random sample of women results in these yearly visit totals
Step-by-step explanation
Step 1.
We are given to use a right-tailed test. That’s why the alternative hypothesis has sign. Reject the null hypothesis if .
The sample of women results is given as follows:
The null hypothesis states that the mean is less than or equal to visits per year.
In symbols:
The alternative hypothesis states that the mean is higher than visits per year. In symbols:
The following procedure is used with the software, to at the conclusion:
Step-by-step procedure to obtain the test statistic and value using the calculator:
- Press Stat > EDIT > Edit.
- Enter data in L1.
- Press Stat > TESTS > 2: T-Test…
- Enter data as shown below:
- Highlight Calculate and press enter.
Output using the calculator is given below:
Since the null hypothesis is not rejected, we cannot conclude that mean is higher than visits per yea
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