According to a survey in a country, 21% of adults do not own a credit card. Suppose a simple random sample of 300 adults is obtained. Complete parts (a) through (c) below. (a) Determine the mean...

According to a survey in a country,

21%

of adults do not own a credit card. Suppose a simple random sample of

300

adults is obtained. Complete parts (a) through (c) below.

(a) Determine the mean of the sampling distribution of

p.

μp=nothing

(Round to two decimal places as needed.)

Determine the standard deviation of the sampling distribution of

p.

σp=nothing

(Round to three decimal places as needed.)

(b) What is the probability that in a random sample of

300

adults, more than

23%

do not own a credit card?

The probability is

nothing.

(Round to four decimal places as needed.)

(c) What is the probability that in a random sample of

300

adults, between

18%

and

23%

do not own a credit card?

The probability is

nothing.

(Round to four decimal places as needed.)

Jun 07, 2022

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