1:09 Thu, May 16 M ← please respond 98. The IRS examined approximately 1% of individual tax returns for a specific year, and the average recommended additional tax per return was $19,150. Based on a random sample of 50 returns, the mean additional tax was $17,020. If the population standard deviation is $4080, is there sufficient evidence to conclude that the mean differs from $19,150 at a = 0.05? Does a 95% confidence interval support this result? Reply
1:09 Thu, May 16 M ← please respond 98. The IRS examined approximately 1% of individual tax returns for a specific year, and the average recommended additional tax per return was $19,150. Based on a random sample of 50 returns, the mean additional tax was $17,020. If the population standard deviation is $4080, is there sufficient evidence to conclude that the mean differs from $19,150 at a = 0.05? Does a 95% confidence interval support this result? Reply
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 13PPS
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![1:09 Thu, May 16 M
←
please respond
98.
The IRS examined approximately 1% of individual
tax returns for a specific year, and the average
recommended additional tax per return was
$19,150. Based on a random sample of 50 returns,
the mean additional tax was $17,020. If the
population standard deviation is $4080, is there
sufficient evidence to conclude that the mean
differs from $19,150 at a = 0.05? Does a 95%
confidence interval support this result?
Reply](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2cdef4de-74dd-4fe8-b3cc-28f6832c2514%2F1f0359bd-1e6d-49b0-99fb-3c18cb0e2634%2Fytaf8wb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1:09 Thu, May 16 M
←
please respond
98.
The IRS examined approximately 1% of individual
tax returns for a specific year, and the average
recommended additional tax per return was
$19,150. Based on a random sample of 50 returns,
the mean additional tax was $17,020. If the
population standard deviation is $4080, is there
sufficient evidence to conclude that the mean
differs from $19,150 at a = 0.05? Does a 95%
confidence interval support this result?
Reply
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