Assume that a sample is used to estimate a population mean u. Find the 99% confidence interval for a sample of size 43 with a mean of 36.3 and a standard deviation of 16.1. Enter your answer as an open- interval (i.e., parentheses) accurate to 3 decimal places. 99% C.I. - The answer should be obtained without any preliminary rounding.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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100%
Assume that a sample is used to estimate a population mean u. Find the 99% confidence interval for a
sample of size 43 with a mean of 36.3 and a standard deviation of 16.1. Enter your answer as an open-
interval (i.e., parentheses) accurate to 3 decimal places.
99% C.I. =
The answer should be obtained without any preliminary rounding.
Transcribed Image Text:Assume that a sample is used to estimate a population mean u. Find the 99% confidence interval for a sample of size 43 with a mean of 36.3 and a standard deviation of 16.1. Enter your answer as an open- interval (i.e., parentheses) accurate to 3 decimal places. 99% C.I. = The answer should be obtained without any preliminary rounding.
The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average,
the reduction in systolic blood pressure is 78.6 for a sample of size 20 and standard deviation 14.6.
Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 99% confidence
level). Assume the data is from a normally distributed population.
Enter your answer as a tri-linear inequality accurate to three decimal places.
< µ <
Transcribed Image Text:The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on average, the reduction in systolic blood pressure is 78.6 for a sample of size 20 and standard deviation 14.6. Estimate how much the drug will lower a typical patient's systolic blood pressure (using a 99% confidence level). Assume the data is from a normally distributed population. Enter your answer as a tri-linear inequality accurate to three decimal places. < µ <
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