The manager of a department store wants to determine the proportion of customers who use the store's credit card when making a purchase. What sample size should he select so that at 96% confidence the error will not be more than 10%?

a. 106
b. 76
c. 1
d. There is not enough information given to determine the sample size

Option A) 106  

Step-by-step explanation:

We are given the following in the question:

Confidence level = 96%

Margin of error = 10%

Formula:

Sample size, n =

Since, we are not given any proportion, we take

Putting all the value, we get,

Thus, the correct answer is

Option A) 106

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

a) 0

step-by-step explanation:

i^413 x i^0 = 0 as any number multiplied by a zero is

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