Question

Question Help the l Complete parts (a) through (f) below (a) What is the probability that a randomly selected pregnancy lasts less than 144 days? The probability that a randomly selected pregnancy lasts less than 144 days is approximately(Round to four decimal places as needed.) Interpret this plobability, Select the correct choice below and filli the answer box within your choice. (Round to the nearest integer as needed.) OA if 100 pregnant indi duals were selected independentyfrom this population, we would e pet■pregnanc estolast more than 144 days. OB. If 100 pregnant individuals were selected independently from this population, we would expect pregnancies to last exacly 144 days. O c. If 100 pregnant individuals were selected independently from this population, we would expect pregnancies to last less than 144 days (b) Suppose a random sample of 19 pregnancies is obtained. Describe the sampling distribution of the sample mean length af pregnancies. The sampling distribution of x is Round to four decimal places as needed) (e) What is the probability that a random sample of 19 pregnancies has a mean gestation period of 144 days or ess? The probabilitythat the mean of a random sample of 19 pregnancios isless than 144 days is approximately (Round to four decimal places as needed.) Interpret this probability, Select the correct choice below and ill n the answer box within your choice (Round to the nearest integer as needed.) A. If 100 independent random samples of size n 19 pregnancies were obtained from this population, we would expect sample(s)to have a same mean Click to select your answer(s) detailed, personalized assistance rch Complete parts (a) through (1) below the lengths of the of a certain animal are approximately normly distributed with mean u 148 days and standard 12 days. ơ (c) What is the probability that a random sample of 19 pregnancies has a mean gestation period of 144 days or less? The probability,that the mean of a random sample of 19 pregnancies is less than 144 days is approximately Round to mal 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.) O A. If 100 independent random samples of size n 19 pregnancies were obtained from this population, we would expectsample(s) to have a sample mean of exactly 144 days if 100 independent random samples o size n-19 pregnancies were obtained from this population we would expect ■ sample s to have a sample mean of 144 days or less O B О с. If 100 ndependent random samples of size n-19 pregnancies were obtained rom this population, we would expect le s to have a sample mean sa of 144 days or more (d) What is the probability that a random sample of 38 pregnancies has a mean gestation period of 144 days or less? The probability that the mean of a randonm Round to four decimal places as needed.) Interpret this probabliy, Select the corect choice below and fli h answer box within your choice sample of 38 pregnancies is less than 144 days is approximately Round to the nearest integer as needed.) If 100 independent random samples of size n 38 pregnancies were obtained from this population, we would expect sample(s) to have a Click to select your answer(s). Suppose the Complete parts (a) through (1) below of the pregnancies o a certain anrnal are approximately nom y distributed with mean μ-148 days and standard deviation σ-12 days. of 144 days or more. (d) What is the probability that a random sample of 38 pregnancies has a mean gestation period of 144 days or less? The probability that the mean of a random sample of 38 pregnancies is less than 144 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.) O A. If 100 independent random samples of size n 38 pregnancies of 144 days or more of 144 days or less of exactly 144 days. were obtained from this population, we would expect sample(s)to have a sample mean were obtained from this population, we would expect sample(s) to have a sample mean samples of size n-38 pregnancies were obtained from this population, we would expect samplets) to have a sample mean OB. If 100 independent random samples of size n 38 pregnancies O C. If 100 (e) What might you conclude if a random sample of 38 pregnancies resulted in a mean gestation period of 144 days or less? This result would be (f) What is the probability a random sample of size 15 will have a mean gestation period within 10 days of the mean? The probability that a random sample of size 15 will have a mean gestation period within 10 days of the mean is 148 days so the sample likely came from a population whose mean gestation period is (Round to four decimal places as needed.) Click to select your answer(s).

Answer 1

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