You sample 61 people to find out their annual salary, and find that the average is $38,000 with a standard deviation of $1,200. What is the 95% confidence interval for your sample mean? Keep three (3) decimal places on any intermediate calculations, and NONE (zero) on your final answer (round to whole numbers). Use proper mathematical rounding. When you submit your answer do not use commas or dollar signs in the answer. (_________, __________)

You sample 61 people to find out their annual salary, and find that the average is $38,000 with a standard deviation of $1,200. What is the 95% confidence interval for your sample mean? Keep three (3) decimal places on any intermediate calculations, and NONE (zero) on your final answer (round to whole numbers). Use proper mathematical rounding. When you submit your answer do not use commas or dollar signs in the answer. (_, __)

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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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 35 home theater systems has a mean price of $145.00. Assume the population standard deviation is $18.10. Construct a 90% confidence interval for the population mean. The 90% confidence interval is ( D. (Round to two decimal places as needed.) S... el R... 1o-Insta... PDF DRA 2021 Deputy Incidents.pdf Enter your answer in the edit fields and then click Check Answer. 2 parts remaining Clear All Check Answer Riley LAMA
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 40 home theater systems has a mean price of $124.00. Assume the population standard deviation is $19.60. Construct a 90% confidence interval for the population mean. The 90% confidence interval is (Round to two decimal places as needed.)
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You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. If convenient, use technology to construct the confidence intervals. A random sample of 60 home theater systems has a mean price of $110.00. Assume the population standard deviation is $17.20. Construct a 90% confidence interval for the population mean. The 90% confidence interval is ( (Round to two decimal places as needed.)
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price of $119.00. Assume the population standard deviation is $18.90. Tnas a Interpret the results. Choose the correct answer below. .O A. With 90% confidence, it can be said that the population mean price lies in the first interval. With 95% confidence, it can be said that the population mean price lies in the second interval. The 95% confidence interval is narrower than the 90%. O B. With 90% confidence, it can be said that the sample mean price lies in the first interval. With 95% confidence, it can be said that the sample mean price lies in the second interval. The 95% confidence interval is wider than the 90%. O C. With 90% confidence, it can be said that the population mean price lies in the first interval. With 95% confidence, it can be said that the population mean price lies in the second interval. The 95% confidence interval is wider than the 90%. Click to select vOur ar