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Chapter 11: Q.2.1 (page 703)

In the previous Check Your Understanding (page 698), we presented data on the use of Facebook by two randomly selected groups of Penn State students. Here are the data once again.

Do these data provide convincing evidence of a difference in the distributions of Facebook use among students in the two campus settings?

State appropriate null and alternative hypotheses for a significance test to help answer this question.

Short Answer

Expert verified

The null and alternative hypotheses are:

H0:There is no difference in the distribution of Facebook use betweenstudents at Penn state's campus and its commonwealth campuses.

Ha:There is a difference in the distribution of Facebook use betweenstudents at Penn state's campus and its commonwealth campuses.

Step by step solution

01

Given Information

The table is,

02

Explanation

It is required to check whether sufficient evidence exists that indicates that there is a difference in the use of Facebook among students in the two campus settings.

The null and alternative hypotheses are:

H0:There is no difference in the distribution of Facebook use betweenstudents at Penn state's campus and its commonwealth campuses.

Ha:There is a difference in the distribution of Facebook use betweenstudents at Penn state's campus and its commonwealth campuses.

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Most popular questions from this chapter

Sorry, no chi-square We would prefer to learn from teachers who know their subject. Perhaps even pre-school children are affected by how knowledgeable they think teachers are. Assign 48three- and four-year-olds at random to be taught the name of a new toy by either an adult who claims to know about the toy or an adult who claims not to know about it. Then ask the children to pick out a picture of the new toy in a set of pictures of other toys and say its name. The response variable is the count of right answers in four tries. Here are the data:

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