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Artyom0805 [142]
3 years ago
7

A student believes that less than 50% of students at his college receive financial aid. A random sample of 120 students was take

n. Sixty-five percent of the students in the sample receive financial aid. Test the hypothesis at the 2% level of significance. What are the p-value and conclusion? a. .999; Do not reject H0 b. .02; Reject H0
Business
1 answer:
den301095 [7]3 years ago
3 0

Answer:

P-value is greater than the significance level, we fail to reject null hypothesis.

Explanation:

Here,  

Sample size = n = 120

Sample proportion = p = 0.6500

Population Proportion = P_{0} = 0.5

Level of significance = α = 0.02

<u />

<u>Step 1: </u>

H_{0}: p = 0.5

H_{1}: p < 0.5 (Left tailed test)

<u></u>

<u>Step 2: </u>

The critical vale is = 2.0537

<u></u>

<u>Step 3:  </u>

The test statistic is,

z =  \frac{p - p_{0} }{\sqrt{\frac{p_{0} (1-p_{0}) }{n} } }

<u>Step 5: </u>

Conclusion using critical value: Since the test statistic value is greater than the critical value, we fail to reject null hypothesis.

<u>Step 6:  </u>

Conclusion using P-value: Since the P-value is greater than the significance level, we fail to reject the null hypothesis.    

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