A 90% confidence interval for using the sample results = 127.2, s = 57.2, and n <= 50 Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate- 127.2 margin of error 114 The 90% confidence interval is -126.06 to 128.34

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Chapter1: Starting With Matlab
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A 90% confidence interval for using the sample results = 127.2, s = 57.2, and n = 50
Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the
confidence interval to two decimal places.
point estimate= 127.2
margin of error = 1.14
The 90% confidence interval is -126.06
to
128.34
Transcribed Image Text:A 90% confidence interval for using the sample results = 127.2, s = 57.2, and n = 50 Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate= 127.2 margin of error = 1.14 The 90% confidence interval is -126.06 to 128.34
Use the t-distribution to find a confidence interval for a mean given the relevant sample results. Give the best point
estimate for u. the margin of error, and the confidence interval. Assume the results come from a random sample from a
population that is approximately normally distributed.
A 99% confidence interval for using the sample results = 82.3, s = 32.3, and n = 15
Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the
confidence interval to two decimal places.
point estimate i 82
margin of error=
2.58
The 99% confidence interval is
60.82
to
103.78
Transcribed Image Text:Use the t-distribution to find a confidence interval for a mean given the relevant sample results. Give the best point estimate for u. the margin of error, and the confidence interval. Assume the results come from a random sample from a population that is approximately normally distributed. A 99% confidence interval for using the sample results = 82.3, s = 32.3, and n = 15 Round your answer for the point estimate to one decimal place, and your answers for the margin of error and the confidence interval to two decimal places. point estimate i 82 margin of error= 2.58 The 99% confidence interval is 60.82 to 103.78
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