Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed. c = 0.95, x= 12.1, s=0.71, n= 14 (Round to one decimal place as needed.)
Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is normally distributed. c = 0.95, x= 12.1, s=0.71, n= 14 (Round to one decimal place as needed.)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 4CYU
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![Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is
normally distributed.
c = 0.95, x= 12.1, s=0.71, n= 14
(Round to one decimal place as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F09fc76f0-690c-4548-a807-d9841947f510%2Fb8956e62-d92f-439f-8d07-e00a3298bdf5%2F6vscm5t_processed.png&w=3840&q=75)
Transcribed Image Text:Construct the indicated confidence interval for the population mean u using the t-distribution. Assume the population is
normally distributed.
c = 0.95, x= 12.1, s=0.71, n= 14
(Round to one decimal place as needed.)
Expert Solution
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Step 1
Since population standard deviation is unknown, Use t-distribution to find t-critical value.
Find the t-critical value:
Refer t-distribution table and look for t value corresponding to degrees of freedom=13 & confidence level of 95% for the two-tail test.
Therefore,
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