Exercise Set 7.2 (42 & 46)
Exercise Set 7.3 (22)
Exercise Set 7.4 (22)
Exercise Set 7.5 (18)
7.2 (42 and 46)
42) Cell Phones-find the minimum sample size required to estimate a population proportion or percentage
As the newly hired manager of a company that provides cell phone service, you want to determine the perentage of adults in your state who live in a household with cell phones and no land line phones. How many adults must you survey? Assume that you want to be 90% confident that the sample percentage is within 4 percentage points of the true population percentage
A) Assume that nothing is known about the percentage of adults who live in a household with cell phones and no landline phones.
B) Assume that a recent survey suggests that about 8 percent of adults live in a household with cell phones and no landline phones.
All other questions and excel docs needed are attached
|$0.50||no category||abubakaryousaf||0 time(s)|
|$60.00||no category||abubakaryousaf||1 time(s)|
|$50.00||no category||metallic_lance||0 time(s)|