Concept explainers
To explain: Whether at 5% significance level it could be concluded that the proportion of students who favor that well being is important is different from the national value of 73%.
Answer to Problem 50E
Yes, it could be said that the proportion of students who favor that wellbeing is important is different from the national value of 73%.
Explanation of Solution
Given:
Formula used:
The formula to compute the test statistic is:
Calculation:
The null and alternative hypotheses are:
The obtained Excel output is:
From the above output, the p-value is 0.0258. Here, p-value < level of significance. Thus, the decision is to reject the null hypothesis.
Conclusion:
Thus, at 5% significance level there are enough evidence to conclude thatthe proportion of students who favor that wellbeing is important is different from the national value of 73%.
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
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