Abank sampled its customers to determine the proportion of customers who use their debit card at least once each month. a sample of 50 customers found that only 12 use their debit card monthly. find a 99% confidence interval for the proportion of customers who use their debit card monthly.

(0.084,0.396)

Step-by-step explanation:

The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as

By rounding to three decimal places we get,

The 99% confidence interval for the proportion of customers who use debit card monthly is (0.084,0.396).

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.