vas X CO After Before Sample Size 10 10 Sample Mean 3.7000 2.6000 Sample Standard Deviation 1.4944 1.0750 df HP Confidence Interval (in terms of After - Before) Confidence Coefficient 16 0.95 Lower Limit -0.1341 2 Upper Limit 2.3341 Hypothesis Test (in terms of After - Before) Hypothesized Value 0 Test Statistic p-value (Lower Tail) p-value (Upper Tail) p-value (Two Tail) 0.0771 Canvas ← → X ab Esc p-value (Two Tail) H&R Block believes the proportion of tax returns submitted to the IRS with errors has decreased over the years. So, an auditor for H&R Block randomly selected a sample of 190 tax returns submitted to the IRS from tax year 1995 and 340 tax returns submitted to the IRS from tax year 2005. He classified the returns as "Error" or "No Error" and recorded his findings in Excel. Can H&R Block prove that the proportion of tax returns submitted to the IRS with errors has decreased over this 10-year period at a=0.005? State the hypothesis in terms of 2005 - 1995. Use the correct excel output above to answer the following question. Find the p-value. Question 7 8.33 pts # m 2 3 Q W E F4 F6 BJ ople F11 F12 Delete $ % & * 4 5 b 7 8 9 0 RTY U P }

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
icon
Related questions
Question
vas
X CO
After
Before
Sample Size
10
10
Sample Mean
3.7000
2.6000
Sample Standard Deviation
1.4944
1.0750
df
HP
Confidence Interval (in terms of After - Before)
Confidence Coefficient
16
0.95
Lower Limit
-0.1341
2
Upper Limit
2.3341
Hypothesis Test (in terms of After - Before)
Hypothesized Value
0
Test Statistic
p-value (Lower Tail)
p-value (Upper Tail)
p-value (Two Tail)
0.0771
Transcribed Image Text:vas X CO After Before Sample Size 10 10 Sample Mean 3.7000 2.6000 Sample Standard Deviation 1.4944 1.0750 df HP Confidence Interval (in terms of After - Before) Confidence Coefficient 16 0.95 Lower Limit -0.1341 2 Upper Limit 2.3341 Hypothesis Test (in terms of After - Before) Hypothesized Value 0 Test Statistic p-value (Lower Tail) p-value (Upper Tail) p-value (Two Tail) 0.0771
Canvas
← → X
ab
Esc
p-value (Two Tail)
H&R Block believes the proportion of tax returns submitted to the IRS with
errors has decreased over the years. So, an auditor for H&R Block randomly
selected a sample of 190 tax returns submitted to the IRS from tax year 1995
and 340 tax returns submitted to the IRS from tax year 2005. He classified the
returns as "Error" or "No Error" and recorded his findings in Excel. Can H&R
Block prove that the proportion of tax returns submitted to the IRS with errors
has decreased over this 10-year period at a=0.005? State the hypothesis in
terms of 2005 - 1995. Use the correct excel output above to answer the
following question.
Find the p-value.
Question 7
8.33 pts
# m
2
3
Q
W
E
F4
F6
BJ
ople
F11
F12
Delete
$
%
&
*
4
5
b
7
8
9
0
RTY
U
P
}
Transcribed Image Text:Canvas ← → X ab Esc p-value (Two Tail) H&R Block believes the proportion of tax returns submitted to the IRS with errors has decreased over the years. So, an auditor for H&R Block randomly selected a sample of 190 tax returns submitted to the IRS from tax year 1995 and 340 tax returns submitted to the IRS from tax year 2005. He classified the returns as "Error" or "No Error" and recorded his findings in Excel. Can H&R Block prove that the proportion of tax returns submitted to the IRS with errors has decreased over this 10-year period at a=0.005? State the hypothesis in terms of 2005 - 1995. Use the correct excel output above to answer the following question. Find the p-value. Question 7 8.33 pts # m 2 3 Q W E F4 F6 BJ ople F11 F12 Delete $ % & * 4 5 b 7 8 9 0 RTY U P }
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax