According to a survey in a country, 35% of adults do not own a credit card. Suppose a simple random sample of 700 adults is obtained. Complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Describe the sampling distribution of p, the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of p below. A. Approximately normal because ns0.05N and np(1-p) < 10 B. Not normal because ns0.05N and np(1 -p) 2 10 C. Not normal because ns0.05N and np(1 -p) < 10 D. Approximately normal because ns0.05N and np(1-p) 2 10 Determine the mean of the sampling distribution of p. = 0.35 (Round to two decimal places as needed.) Determine the standard deviation of the sampling distribution of p. = 0.018 (Round to three decimal places as needed.) (b) What is the probability that in a random sample of 700 adults, more than 38% do not own a credit card? The probability is. (Round to four decimal places as needed.)
According to a survey in a country, 35% of adults do not own a credit card. Suppose a simple random sample of 700 adults is obtained. Complete parts (a) through (d) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Describe the sampling distribution of p, the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of p below. A. Approximately normal because ns0.05N and np(1-p) < 10 B. Not normal because ns0.05N and np(1 -p) 2 10 C. Not normal because ns0.05N and np(1 -p) < 10 D. Approximately normal because ns0.05N and np(1-p) 2 10 Determine the mean of the sampling distribution of p. = 0.35 (Round to two decimal places as needed.) Determine the standard deviation of the sampling distribution of p. = 0.018 (Round to three decimal places as needed.) (b) What is the probability that in a random sample of 700 adults, more than 38% do not own a credit card? The probability is. (Round to four decimal places as needed.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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