A sample of size n = 81 produced the sample mean of = 50. Assuming the population standard deviation o = 9, compute a 99% confidence interval for the population mean p. 1. Given the following data: 2 2. 10 8. 6 4 Construct a 95 % confidence interval estimate for the population mean.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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Q:1,2,3,4,5

A sample of size n =
population standard deviation o = 9, compute a 99% confidence interval for the
population mean µ.
1.
81 produced the sample mean of i
50. Assuming the
%3D
Given the following data:
2
2.
10
8 6 4
Construct a 95 % confidence interval estimate for the population mean.
A random sample of 1000 people shows that 100 are left-handed. Construct a 90%
confidence interval for the true proportion of left-handers.
3.
How large a sample would be necessary to estimate the true proportion defective
in a large population within 5%, with 99% confidence? (Assume a pilot sample
yields p = 0.5)
4.
%3D
5.
Write a short note on point estimate and confidence interval estimate.
Transcribed Image Text:A sample of size n = population standard deviation o = 9, compute a 99% confidence interval for the population mean µ. 1. 81 produced the sample mean of i 50. Assuming the %3D Given the following data: 2 2. 10 8 6 4 Construct a 95 % confidence interval estimate for the population mean. A random sample of 1000 people shows that 100 are left-handed. Construct a 90% confidence interval for the true proportion of left-handers. 3. How large a sample would be necessary to estimate the true proportion defective in a large population within 5%, with 99% confidence? (Assume a pilot sample yields p = 0.5) 4. %3D 5. Write a short note on point estimate and confidence interval estimate.
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