You are running a political campaign and wish to estimate, with 90% confidence the population proportion...

You are running a political campaign and wish to estimate, with 90% confidence the population proportion of voters who will vote for your candidate. Your estimate must be within 5% of the population proportion. Find the minimum sample size if:

a. no preliminary estimate for p is given.

b. A preliminary estimate for p-hat is 62%.

Please show all work or if you used a TI 84 please explain the necessary steps to get the answer, thank you for the help :)

Solutions

Expert Solution

Refer Standard normal table/Z-table or use excel function "=NORM.S.INV((1-0.05))" to find the Z-value.

Round the value to the nearest integer.

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Round the value to the nearest integer.

orchestra answered 1 year ago

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