Unit Four Assessment SPR 24(1) ayout References - Protected View Saved v Mailings Review View Help Search ternet can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 8. A company reports that last year, 40% of their accounting reports were on time. From a random sample of reports this year, they find that 128 out of 400 reports were on time. Does this provide evidence at the 5% level that the proportion of on-time reports has improved? A. State appropriate hypotheses and define the parameter of interest, p. (4 points) B. Are the conditions for a hypothesis test in this situation met? Show how. (5 points) C. Compute the test statistic. Show work. (3 points) D. Compute a p-value. No work necessary. (3 points) E. State your decision and write a conclusion. You do both to receive full credit. (4 points) Q Search Focus
Unit Four Assessment SPR 24(1) ayout References - Protected View Saved v Mailings Review View Help Search ternet can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing 8. A company reports that last year, 40% of their accounting reports were on time. From a random sample of reports this year, they find that 128 out of 400 reports were on time. Does this provide evidence at the 5% level that the proportion of on-time reports has improved? A. State appropriate hypotheses and define the parameter of interest, p. (4 points) B. Are the conditions for a hypothesis test in this situation met? Show how. (5 points) C. Compute the test statistic. Show work. (3 points) D. Compute a p-value. No work necessary. (3 points) E. State your decision and write a conclusion. You do both to receive full credit. (4 points) Q Search Focus
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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8. A company reports that last year, 40% of their accounting reports were on time. From a random sample of
reports this year, they find that 128 out of 400 reports were on time. Does this provide evidence at the 5% level
that the proportion of on-time reports has improved?
A. State appropriate hypotheses and define the parameter of interest, p. (4 points)
B. Are the conditions for a hypothesis test in this situation met? Show how. (5 points)
C. Compute the test statistic. Show work. (3 points)
D. Compute a p-value. No work necessary. (3 points)
E. State your decision and write a conclusion. You do both to receive full credit. (4 points)
Q Search
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Transcribed Image Text:Unit Four Assessment SPR 24(1)
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8. A company reports that last year, 40% of their accounting reports were on time. From a random sample of
reports this year, they find that 128 out of 400 reports were on time. Does this provide evidence at the 5% level
that the proportion of on-time reports has improved?
A. State appropriate hypotheses and define the parameter of interest, p. (4 points)
B. Are the conditions for a hypothesis test in this situation met? Show how. (5 points)
C. Compute the test statistic. Show work. (3 points)
D. Compute a p-value. No work necessary. (3 points)
E. State your decision and write a conclusion. You do both to receive full credit. (4 points)
Q Search
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