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The length of human pregnancies is approximately normal with mean μ = 266 days and standard deviation o= 16 days. Complete parts (a) through (f). (a) What is the probability that a randomly selected pregnancy lasts less than 262 days? The probability that a randomly selected pregnancy lasts less than 262 days is approximately (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) OA. If 100 pregnant individuals were selected independently from this population, we would expect OB. If 100 pregnant individuals were selected independently from this population, we would expect OC. If 100 pregnant individuals were selected independently from this population, we would expect (b) Suppose a random sample of 48 human pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of x is with Hand ox (Type integers or decimals rounded to four decimal places as needed.) pregnancies to last more than 262 days. pregnancies to last less than 262 days. pregnancies to last exactly 262 days. +

The length of human pregnancies is approximately normal with mean μ = 266 days and standard deviation o= 16 days. Complete parts (a) through (f). (a) What is the probability that a randomly selected pregnancy lasts less than 262 days? The probability that a randomly selected pregnancy lasts less than 262 days is approximately (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) OA. If 100 pregnant individuals were selected independently from this population, we would expect OB. If 100 pregnant individuals were selected independently from this population, we would expect OC. If 100 pregnant individuals were selected independently from this population, we would expect (b) Suppose a random sample of 48 human pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of x is with Hand ox (Type integers or decimals rounded to four decimal places as needed.) pregnancies to last more than 262 days. pregnancies to last less than 262 days. pregnancies to last exactly 262 days. +

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The length of human pregnancies is approximately normal with mean μ = 266 days and standard deviation o= 16 days. Complete parts (a) through (f). ... (c) What is the probability that a random sample of 48 pregnancies has a mean gestation period of 262 days or less? The probability that the mean of a random sample of 48 pregnancies is less than 262 days is approximately (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) OA. If 100 independent random samples of size n = 48 pregnancies were obtained from this population, we would expect exactly 262 days. OB. If 100 independent random samples of size n = 48 pregnancies were obtained from this population, we would expect 262 days or more. OC. If 100 independent random samples of size n = 48 pregnancies were obtained from this population, we would expect 262 days or less. (d) What is the probability that a random sample of 111 pregnancies has a mean gestation period of 262 days or less? The probability that the mean of a random sample of 111 pregnancies is less than 262 days is approximately (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) sample(s) to have a sample mean of sample(s) to have a sample mean of sample(s) to have a sample mean of
Transcribed Image Text:The length of human pregnancies is approximately normal with mean μ = 266 days and standard deviation o= 16 days. Complete parts (a) through (f). ... (c) What is the probability that a random sample of 48 pregnancies has a mean gestation period of 262 days or less? The probability that the mean of a random sample of 48 pregnancies is less than 262 days is approximately (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) OA. If 100 independent random samples of size n = 48 pregnancies were obtained from this population, we would expect exactly 262 days. OB. If 100 independent random samples of size n = 48 pregnancies were obtained from this population, we would expect 262 days or more. OC. If 100 independent random samples of size n = 48 pregnancies were obtained from this population, we would expect 262 days or less. (d) What is the probability that a random sample of 111 pregnancies has a mean gestation period of 262 days or less? The probability that the mean of a random sample of 111 pregnancies is less than 262 days is approximately (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) sample(s) to have a sample mean of sample(s) to have a sample mean of sample(s) to have a sample mean of
The length of human pregnancies is approximately normal with mean μ = 266 days and standard deviation o= 16 days. Complete parts (a) through (f). (a) What is the probability that a randomly selected pregnancy lasts less than 262 days? The probability that a randomly selected pregnancy lasts less than 262 days is approximately. (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) OA. If 100 pregnant individuals were selected independently from this population, we would expect OB. If 100 pregnant individuals were selected independently from this population, we would expect OC. If 100 pregnant individuals were selected independently from this population, we would expect pregnancies to last more than 262 days. pregnancies to last less than 262 days. pregnancies to last exactly 262 days. (b) Suppose a random sample of 48 human pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of x is with μ = and o=0. o- H (Type integers or decimals rounded to four decimal places as needed.) (c) What is the probability that a random sample of 48 pregnancies has a mean gestation period of 262 days or less? The probability that the mean of a random sample of 48 pregnancies is less than 262 days is approximately /Dound to four decimal places as needed I
Transcribed Image Text:The length of human pregnancies is approximately normal with mean μ = 266 days and standard deviation o= 16 days. Complete parts (a) through (f). (a) What is the probability that a randomly selected pregnancy lasts less than 262 days? The probability that a randomly selected pregnancy lasts less than 262 days is approximately. (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) OA. If 100 pregnant individuals were selected independently from this population, we would expect OB. If 100 pregnant individuals were selected independently from this population, we would expect OC. If 100 pregnant individuals were selected independently from this population, we would expect pregnancies to last more than 262 days. pregnancies to last less than 262 days. pregnancies to last exactly 262 days. (b) Suppose a random sample of 48 human pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies. The sampling distribution of x is with μ = and o=0. o- H (Type integers or decimals rounded to four decimal places as needed.) (c) What is the probability that a random sample of 48 pregnancies has a mean gestation period of 262 days or less? The probability that the mean of a random sample of 48 pregnancies is less than 262 days is approximately /Dound to four decimal places as needed I
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