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Chapter 7: Q.1.3. (page 437)

About 75%of young adult internet users (ages18-29)watch online video. Suppose that a sample survey contacts an SRS of 1000young adult Internet users and calculates the proportion of p⏞in this sample who watch online video.

Is the sampling distribution ofp⏞approximately normal? check that the normal condition is met.

Short Answer

Expert verified

The sampling distribution of p⏞is approximately normal.

Step by step solution

01

Step-1 Given Information

Given In the question that population proportion (p)=75%=0.75

Sample size(n)=1000

02

Step-2 Explanation

If the following conditions are met, the sampling distribution is considered to be nearly normal:

np≥10

n(1−p)≥10

here,

localid="1650022398430" np=1000(0.75)=750>10

And,

localid="1650022402264" n(1−p)=1000(1−0.75)=250>10

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Most popular questions from this chapter

You want to take an SRS 50of the 816students who live in a dormitory on a college campus. You label the students 001to 816in alphabetical order. In the table of random digits, you read the entries

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