Sandra B.

asked • 12d

Finding new customers An online retailer wants to estimate p = the proportion of all orders in a given week that are from new customers.

Finding new customers An online retailer wants to estimate p = the proportion of all orders in a given week that are from new customers. He takes an SRS of 40 orders and finds that 12 of them are from new customers. Calculate a 99% confidence interval for the proportion of the week’s orders that are from new customers.

{A} .11 to .49

{B} .18 to .33

{C} .2 to .4

{D} .25 to .45

1 Expert Answer

By:

Komal R. answered • 12d

Tutor
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Statistician-------

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