A sample of observations taken from a normally distributed population produced the following data: 28.4 27.2 25.3 25.1 31.2 23.5 26.1 24.1 28.5 37.3 23.8 28.6 27.6 25.3 27.2 25.3 22.7 22.6 A. What is the point estimate of mean? B. Make a 98% confidence interval for mean. C. What is the margin of error estimate for mean in part B?

MATLAB: An Introduction with Applications
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A sample of observations taken from a normally distributed population produced the following data: 

28.4   27.2   25.3   25.1   31.2   23.5    26.1   24.1   28.5 

37.3   23.8   28.6   27.6   25.3   27.2   25.3    22.7   22.6

A. What is the point estimate of mean?

B. Make a 98% confidence interval for mean.

C. What is the margin of error estimate for mean in part B? 

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