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Give a 95% confidence interval for the number of arrivals. (34.9,69.8) Suppose the computed 95% confidence interval is (34, 68), which of the below interpretation is correct. [Select] [Select] 95% of values sampled are between 34 and 68. There is a 95% probability that the true mean arrivals is between 34 and 68. there is a 95% probability that the true mean is 34 arrivals. All of the above statements are true.. If we get many additional random samples and from each computed a 95% confidence intervals, approximately 95% of these intervals would contain the true average arrivals. Previous Next ▸

Give a 95% confidence interval for the number of arrivals. (34.9,69.8) Suppose the computed 95% confidence interval is (34, 68), which of the below interpretation is correct. [Select] [Select] 95% of values sampled are between 34 and 68. There is a 95% probability that the true mean arrivals is between 34 and 68. there is a 95% probability that the true mean is 34 arrivals. All of the above statements are true.. If we get many additional random samples and from each computed a 95% confidence intervals, approximately 95% of these intervals would contain the true average arrivals. Previous Next ▸

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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The marketing director of a large department store in Metro Manila wants to estimate the average number of customers who enter the store every five minutes. She randomly selects five-minute intervals and counts the number of arrivals at the store. She obtains the figures: 58, 32, 41, 47, 56, 80. Find the mean of this sample 52.3 Find the standard deviation of this sample 16.6 Give the t-value for a 95% confidence coefficient, assuming a normal distribution. 2.571 Give a 95% confidence interval for the number of arrivals. (34.9, 69.8) Suppose the computed 95% confidence interval is (34, 68), which of the below interpretation is correct. [Select] [Select] 95% of values sampled are between 34 and 68. There is a 95% probability that the true mean arrivals is between 34 and 68. there is a 95% probability that the true mean is 34 arrivals. All of the above statements are true. If we get many additional random samples and from each computed a 95% confidence intervals, approximately 95% of these intervals would contain the true average arrivals. Next ▸ Previous >
Transcribed Image Text:The marketing director of a large department store in Metro Manila wants to estimate the average number of customers who enter the store every five minutes. She randomly selects five-minute intervals and counts the number of arrivals at the store. She obtains the figures: 58, 32, 41, 47, 56, 80. Find the mean of this sample 52.3 Find the standard deviation of this sample 16.6 Give the t-value for a 95% confidence coefficient, assuming a normal distribution. 2.571 Give a 95% confidence interval for the number of arrivals. (34.9, 69.8) Suppose the computed 95% confidence interval is (34, 68), which of the below interpretation is correct. [Select] [Select] 95% of values sampled are between 34 and 68. There is a 95% probability that the true mean arrivals is between 34 and 68. there is a 95% probability that the true mean is 34 arrivals. All of the above statements are true. If we get many additional random samples and from each computed a 95% confidence intervals, approximately 95% of these intervals would contain the true average arrivals. Next ▸ Previous >
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