It is known that 40% of all customers at a service station pay with a credit card. If a random sample of 200 customers is selected and 75 of them found to pay by credit card, find the mean of the...


It is known that 40% of all customers at a<br>service station pay with a credit card. If a<br>random sample of 200 customers is selected<br>and 75 of them found to pay by credit card,<br>find the mean of the sampling distribution of<br>the sample proportion.<br>O A. 0.035<br>B. 0.375<br>O C. 0.40<br>O D. 0.20<br>

Extracted text: It is known that 40% of all customers at a service station pay with a credit card. If a random sample of 200 customers is selected and 75 of them found to pay by credit card, find the mean of the sampling distribution of the sample proportion. O A. 0.035 B. 0.375 O C. 0.40 O D. 0.20

Jun 09, 2022
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