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1. A survey asked the question "What do you think is the ideal number of children for a family to have?" The 495 females who responded had a median of 2, mean of 3.41, and standard deviation of 1.1. Answer parts a-d. a. What is the point estimate of the population mean? b. Find the standard error of the sample mean. standard error = c. The 95% confidence interval is (3.31, 3.51). Interpret. (Round to three decimal places as needed.) A. We can be 95% confident that the mean number of children that females would like to have is between 3.31 and 3.51. B. We can be 95% confident that the proportion of females who want children is between 3.31 and 3.51. C. Ninety-five percent of females want between 3.31 and 3.51 children. D. We can be 95% confident that a given female will want between 3.31 and 3.51 children. d. Is it plausible that the population mean μ = 2? OA. Yes, because the median is 2. OB. No, because the sample mean was not 2. OC. Yes, because 2 falls outside the confidence interval. OD. No, because 2 falls outside the confidence interval.

1. A survey asked the question "What do you think is the ideal number of children for a family to have?" The 495 females who responded had a median of 2, mean of 3.41, and standard deviation of 1.1. Answer parts a-d. a. What is the point estimate of the population mean? b. Find the standard error of the sample mean. standard error = c. The 95% confidence interval is (3.31, 3.51). Interpret. (Round to three decimal places as needed.) A. We can be 95% confident that the mean number of children that females would like to have is between 3.31 and 3.51. B. We can be 95% confident that the proportion of females who want children is between 3.31 and 3.51. C. Ninety-five percent of females want between 3.31 and 3.51 children. D. We can be 95% confident that a given female will want between 3.31 and 3.51 children. d. Is it plausible that the population mean μ = 2? OA. Yes, because the median is 2. OB. No, because the sample mean was not 2. OC. Yes, because 2 falls outside the confidence interval. OD. No, because 2 falls outside the confidence interval.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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1. A survey asked the question "What do you think is the ideal number of children for a family to have?" The 495 females who responded had a median of 2, mean of 3.41, and standard deviation of 1.1. Answer parts a-d. a. What is the point estimate of the population mean? b. Find the standard error of the sample mean. standard error = (Round to three decimal places as needed.) c. The 95% confidence interval is (3.31, 3.51). Interpret. A. We can be 95% confident that the mean number of children that females would like to have is between 3.31 and 3.51. B. We can be 95% confident that the proportion of females who want children is between 3.31 and 3.51. C. Ninety-five percent of females want between 3.31 and 3.51 children. D. We can be 95% confident that a given female will want between 3.31 and 3.51 children. d. Is it plausible that the population mean μ = 2? A. Yes, because the median is 2. B. No, because the sample mean was not 2. C. Yes, because 2 falls outside the confidence interval. D. No, because 2 falls outside the confidence interval.
Transcribed Image Text:1. A survey asked the question "What do you think is the ideal number of children for a family to have?" The 495 females who responded had a median of 2, mean of 3.41, and standard deviation of 1.1. Answer parts a-d. a. What is the point estimate of the population mean? b. Find the standard error of the sample mean. standard error = (Round to three decimal places as needed.) c. The 95% confidence interval is (3.31, 3.51). Interpret. A. We can be 95% confident that the mean number of children that females would like to have is between 3.31 and 3.51. B. We can be 95% confident that the proportion of females who want children is between 3.31 and 3.51. C. Ninety-five percent of females want between 3.31 and 3.51 children. D. We can be 95% confident that a given female will want between 3.31 and 3.51 children. d. Is it plausible that the population mean μ = 2? A. Yes, because the median is 2. B. No, because the sample mean was not 2. C. Yes, because 2 falls outside the confidence interval. D. No, because 2 falls outside the confidence interval.
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