Tutoring Services: The Community College Survey of Student Engagement Select one

Question

Tutoring Services: The Community College Survey of Student Engagement Select one answer. reports that 46% of the students surveyed rarely or never use peer or other | 10 points tutoring resources. Suppose that in reality 40% of community college students never use tutoring services available at their college. In a simulation we select random samples from a population in which 40% do not use tutoring. For each sample we calculate the proportion who do not use tutoring. For which of the following sample sizes will a normal model be a good fit for the sampling distribution? A. OAny sample size B. All sample sizes greater than 20 C. OAll sample sizes greater than 25

Explanation / Answer

Solution:

Given, p = 0.4;
A Normal distribution is a good fit for the sampling distribution of sample proportions.
n*p >= 10
so, n >= 10/0.4
n > 25

All sample sizes greater than 25

Hence,Option (C) is correct.

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