stions « Question 20 of 20 O Lori Jeffrey is a successful sales representative for a major publisher of college textbooks. Historically, Lori obtains a book adoption on 20% of her sales calls. Viewing her sales calls for one month as a sample of all possible sales calls, assume that a statistical analysis of the data yields a standard eror of the proportion of 0.0800. Use the z-table. a. How large was the sample used in this analysis? That is, how many sales calls did Lori make during the month? b. Let p indicate the sample proportion of book adoptions obtained during the month. Show the sampling distribution of p. The sampling distribution Select your answer - v normal because np and n(1 – p) are both Select your answer - 5. Choose the correct graph. A.

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O Lori Jeffrey is a successful sales representative for a major publisher of college textbooks. Historically, Lori obtains a book adoption on 20% of her sales calls.
Viewing her sales calls for one month as a sample of all possible sales calls, assume that a statistical analysis of the data yields a standard eror of the
proportion of 0.0800. Use the z-table.
a. How large was the sample used in this analysis? That is, how many sales calls did Lori make during the month?
b. Let p indicate the sample proportion of book adoptions obtained during the month. Show the sampling distribution of p.
The sampling distribution
Select your answer - v normal because np and n(1 – p) are both
Select your answer -
5.
Choose the correct graph.
A.
Transcribed Image Text:stions 1 Question 20 of 20 O Lori Jeffrey is a successful sales representative for a major publisher of college textbooks. Historically, Lori obtains a book adoption on 20% of her sales calls. Viewing her sales calls for one month as a sample of all possible sales calls, assume that a statistical analysis of the data yields a standard eror of the proportion of 0.0800. Use the z-table. a. How large was the sample used in this analysis? That is, how many sales calls did Lori make during the month? b. Let p indicate the sample proportion of book adoptions obtained during the month. Show the sampling distribution of p. The sampling distribution Select your answer - v normal because np and n(1 – p) are both Select your answer - 5. Choose the correct graph. A.
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