The following data represent crime rates per 1000 population for a random sample of 46 Denver neighborhoods.† 63.2 36.3 26.2 53.2 65.3 32.0 65.0 66.3 68.9 35.2 25.1 32.5 54.0 42.4 77.5 123.2 66.3 92.7 56.9 77.1 27.5 69.2 73.8 71.5 58.5 67.2 78.6 33.2 74.9 45.1 132.1 104.7 63.2 59.6 75.7 39.2 69.9 87.5 56.0 154.2 85.5 77.5 84.7 24.2 37.5 41.1 (a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers to four decimal places.) x = ________ crimes per 1000 people s = _______crimes per 1000 people (b)Compute a 95% confidence interval for ?, the population mean crime rate for all Denver neighborhoods. (Round your answers to one decimal place.) lower limit _________crimes per 1000 people upper limit _________crimes per 1000 people
The following data represent crime rates per 1000 population for a random sample of 46 Denver neighborhoods.† 63.2 36.3 26.2 53.2 65.3 32.0 65.0 66.3 68.9 35.2 25.1 32.5 54.0 42.4 77.5 123.2 66.3 92.7 56.9 77.1 27.5 69.2 73.8 71.5 58.5 67.2 78.6 33.2 74.9 45.1 132.1 104.7 63.2 59.6 75.7 39.2 69.9 87.5 56.0 154.2 85.5 77.5 84.7 24.2 37.5 41.1 (a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers to four decimal places.) x = ________ crimes per 1000 people s = _______crimes per 1000 people (b)Compute a 95% confidence interval for ?, the population mean crime rate for all Denver neighborhoods. (Round your answers to one decimal place.) lower limit _________crimes per 1000 people upper limit _________crimes per 1000 people
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 following data represent crime rates per 1000 population for a random sample of 46 Denver neighborhoods.†
63.2 | 36.3 | 26.2 | 53.2 | 65.3 | 32.0 | 65.0 |
66.3 | 68.9 | 35.2 | 25.1 | 32.5 | 54.0 | 42.4 |
77.5 | 123.2 | 66.3 | 92.7 | 56.9 | 77.1 | 27.5 |
69.2 | 73.8 | 71.5 | 58.5 | 67.2 | 78.6 | 33.2 |
74.9 | 45.1 | 132.1 | 104.7 | 63.2 | 59.6 | 75.7 |
39.2 | 69.9 | 87.5 | 56.0 | 154.2 | 85.5 | 77.5 |
84.7 | 24.2 | 37.5 | 41.1 |
(a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers to four decimal places.)
x = | ________ crimes per 1000 people |
s = | _______crimes per 1000 people |
(b)Compute a 95% confidence interval for ?, the population mean crime rate for all Denver neighborhoods. (Round your answers to one decimal place.)
lower limit | _________crimes per 1000 people |
upper limit | _________crimes per 1000 people |
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