Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Assume that the population has a normal distribution. 18) A savings and loan association needs information concerning the checking account balances of its local customers. A random sample of 14 accounts was checked and yielded a mean balance of $664.14 and a standard deviation of $297.29. Find a 98% confidence interval for the true mean checking account balance for local customers. A) $455.65 <μ< $872.63 c) $492.52 << $835.76 B) $453.59 <μ< $874.69 D) $493.71 < u< $834.57 Use the given information to find the P-value and state the conclusion of the hypothesis test.
Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Assume that the population has a normal distribution. 18) A savings and loan association needs information concerning the checking account balances of its local customers. A random sample of 14 accounts was checked and yielded a mean balance of $664.14 and a standard deviation of $297.29. Find a 98% confidence interval for the true mean checking account balance for local customers. A) $455.65 <μ< $872.63 c) $492.52 << $835.76 B) $453.59 <μ< $874.69 D) $493.71 < u< $834.57 Use the given information to find the P-value and state the conclusion of the hypothesis test.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ. Assume
that the population has a normal distribution.
18) A savings and loan association needs information concerning the checking account balances
of its local customers. A random sample of 14 accounts was checked and yielded a mean
balance of $664.14 and a standard deviation of $297.29. Find a 98% confidence interval for
the true mean checking account balance for local customers.
A) $455.65 <μ< $872.63
c) $492.52 << $835.76
B) $453.59 <μ< $874.69
D) $493.71 < u< $834.57
Use the given information to find the P-value and state the conclusion of the hypothesis test.
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