p-varue (Two Tainy 2005 1995 Sample Size Count for Response Sample Proportion 340 190 0.1500 0.2000 Confidence Interval (in terms of 2005 - 1995) Confidence Coefficient Lower Limit Upper Limit 0.95 -0.1184 0.0184 Hypothesis Test (in terms of 2005 - 1995) Hypothesized Value Pooled Sample Proportion Test Statistic p-value (Lower Tail) p-value (Upper Tail) p-value (Two Tail) 0.0699 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 sel sample of 190 tax returns submitted to the IRS from tax year 1995 and 340 tax returns submitted to the IRS from tax year 2005s. He classified the returns as 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 ove 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. For the 98% confidence interval for p1995 - P200s, find the lower endpoint.

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Remaining Time: 58 minutes, 44 seconds.
Question Completion Status:
p-varue (Two Tany
2005
1995
Sample Size
Count for Response
Sample Proportion
340
190
0.1500
0.2000
Confidence Interval (in terms of 2005 - 1995)
Confidence Coefficient
0.95
-0.1184
Lower Limit
Upper Limit
0.0184
Hypothesis Test (in terms of 2005 - 1995)
Hypothesized Value
Pooled Sample Proportion
Test Statistic
p-value (Lower Tail)
p-value (Upper Tail)
p-value (Two Tail)
0.0699
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 selecte
sample of 190 tax returns submitted to the IRS from tax year 1995 and 340 tax returns submitted to the IRS from tax year 200s. He classified the returns as "E
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 th
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.
For the 98% confidence interval for p1995 - p200s, find the lower endpoint.
Save
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
MacBo
1V7
F6
F3
F2
FI
$
%
8
%23
7
4.
5
3
T
Y
Q
E
Transcribed Image Text:Remaining Time: 58 minutes, 44 seconds. Question Completion Status: p-varue (Two Tany 2005 1995 Sample Size Count for Response Sample Proportion 340 190 0.1500 0.2000 Confidence Interval (in terms of 2005 - 1995) Confidence Coefficient 0.95 -0.1184 Lower Limit Upper Limit 0.0184 Hypothesis Test (in terms of 2005 - 1995) Hypothesized Value Pooled Sample Proportion Test Statistic p-value (Lower Tail) p-value (Upper Tail) p-value (Two Tail) 0.0699 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 selecte sample of 190 tax returns submitted to the IRS from tax year 1995 and 340 tax returns submitted to the IRS from tax year 200s. He classified the returns as "E 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 th 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. For the 98% confidence interval for p1995 - p200s, find the lower endpoint. Save Click Save and Submit to save and submit. Click Save All Answers to save all answers. MacBo 1V7 F6 F3 F2 FI $ % 8 %23 7 4. 5 3 T Y Q E
Question Completion Status:
2005
1995
Sample Size
Count for Response
Sample Proportion
180
320
0.1500
0.2500
Confidence Interval (in terms of 2005 - 1995)
Confidence Coefficient
0.95
Lower Limit
-0.1705
Upper Limit
-0.0295
Hypothesis Test (in terms of 2005 - 1995)
Hypothesized Value
Pooled Sample Proportion
Test Statistic
p-value (Lower Tail)
p-value (Upper Tail)
p-value (Two Tail)
0.0044
2005
1995
Sample Size
Count for Response
Sample Proportion
340
190
0.1500
0.2000
Confidence Interval (in terms of 2005 - 1995)
Confidence Coefficient
Lower Limit
Upper Limit
0.95
-0.1184
0.0184
Hypothesis Test (in terms of 2005 - 1995)
Click Save and Submit to save and submit. Click Save All Answers to save all answers.
Transcribed Image Text:Question Completion Status: 2005 1995 Sample Size Count for Response Sample Proportion 180 320 0.1500 0.2500 Confidence Interval (in terms of 2005 - 1995) Confidence Coefficient 0.95 Lower Limit -0.1705 Upper Limit -0.0295 Hypothesis Test (in terms of 2005 - 1995) Hypothesized Value Pooled Sample Proportion Test Statistic p-value (Lower Tail) p-value (Upper Tail) p-value (Two Tail) 0.0044 2005 1995 Sample Size Count for Response Sample Proportion 340 190 0.1500 0.2000 Confidence Interval (in terms of 2005 - 1995) Confidence Coefficient Lower Limit Upper Limit 0.95 -0.1184 0.0184 Hypothesis Test (in terms of 2005 - 1995) Click Save and Submit to save and submit. Click Save All Answers to save all answers.
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