Suppose that the typing speed for secretaries are normally distributed with an unknown mean and standard deviation. A random sample of 26 secretaries is taken and gives a sample mean of 54 words per minute and a sample standard deviation of 5 words per minute. df t.1o.o5 t0.025 t0.o t0.005 0.10 22 1.321 1.717 2.074 2.508 2.819 23 1.319 1.714 2.069 2.500 2.807 24 1.318 1.71 2.064 2.492 2.797 25 1.316 1.708 2.060 2.485 2.787 26 1.315 1.706 2.056 2.479 2.779 Find the margin of error for a 98% confidence interval estimate for the population mean using the Student's t-distribution. Round the final answer to two decimal places. Provide your answer below: ME

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Suppose that the typing speed for secretaries are normally distributed with an unknown mean and standard deviation. A
random sample of 26 secretaries is taken and gives a sample mean of 54 words per minute and a sample standard
deviation of 5 words per minute.
df t.1o.o5 t0.025 t0.o
t0.005
0.10
22 1.321 1.717 2.074 2.508 2.819
23 1.319 1.714 2.069 2.500 2.807
24 1.318 1.71 2.064 2.492 2.797
25 1.316 1.708 2.060 2.485 2.787
26 1.315 1.706 2.056 2.479 2.779
Find the margin of error for a 98% confidence interval estimate for the population mean using the Student's t-distribution.
Round the final answer to two decimal places.
Provide your answer below:
ME
Transcribed Image Text:Suppose that the typing speed for secretaries are normally distributed with an unknown mean and standard deviation. A random sample of 26 secretaries is taken and gives a sample mean of 54 words per minute and a sample standard deviation of 5 words per minute. df t.1o.o5 t0.025 t0.o t0.005 0.10 22 1.321 1.717 2.074 2.508 2.819 23 1.319 1.714 2.069 2.500 2.807 24 1.318 1.71 2.064 2.492 2.797 25 1.316 1.708 2.060 2.485 2.787 26 1.315 1.706 2.056 2.479 2.779 Find the margin of error for a 98% confidence interval estimate for the population mean using the Student's t-distribution. Round the final answer to two decimal places. Provide your answer below: ME
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