MATLAB: An Introduction with Applications
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ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question 12.
Directors of a company claim that 90% of the workforce supports a new shift pattern that they have suggested. A random survey of 100 people in the workforce finds 85 in favour of the new scheme. Test if there is a significant difference between the survey results and the director's claim.
12.1 What kind of test will you perform?
(a) 1 sample z-test (b) 1 sample t-test (c) 1 sample proportion t-test (d) 2 sample t-test
12.2 State the Alternative Hypothesis
(a) H1: mu < 0.9 (b) H1: mu > 0.9
(c) H1: mu 0.9 (d) H1: mu 0.9
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Follow-up Question
Transcribed Image Text:Question 12.
Directors of a company claim that 90% of the workforce supports a new shift
pattern that they have suggested. A random survey of 100 people in the
workforce finds 85 in favour of the new scheme. Test if there is a significant
difference between the survey results and the director's claim.
12.1 What kind of test will you perform?
(a) 1 sample z-test
(c) 1 sample proportion t-test
12.2 State the Alternative Hypothesis
H1: mu < 0.9
H1: mu ≤ 0.9
(a)
(C)
H1: mu > 0.9
H1: mu * 0.9
12.3 At what level of significance will you test the difference between the director's
claim and the survey results?
(a)
alpha = 0.01
(b)
alpha= 0.025
(c)
alpha = 0.05
(d) alpha = 0.975
12.4 What kind of test in terms of the tails will you perform?
Right -tailed
(b)
Left-tailed
(a)
(C)
(b) 1 sample t-test
(d) 2 sample t-test
(b)
(d)
(a)
(c)
Two-tailed
12.5 Which value(s) indicate(s) the rejection region?
(a)
1.96
(b) 1.645
(c)
1.782
12.6 If the test statistic = -1.67, referring to the rejection region and the test
statistic, what will happen to the hypotheses?
Reject HO
Do not reject HO
(b)
(d)
Reject H1
Do not reject H1
Solution
by Bartleby Expert
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
Transcribed Image Text:Question 12.
Directors of a company claim that 90% of the workforce supports a new shift
pattern that they have suggested. A random survey of 100 people in the
workforce finds 85 in favour of the new scheme. Test if there is a significant
difference between the survey results and the director's claim.
12.1 What kind of test will you perform?
(a) 1 sample z-test
(c) 1 sample proportion t-test
12.2 State the Alternative Hypothesis
H1: mu < 0.9
H1: mu ≤ 0.9
(a)
(C)
H1: mu > 0.9
H1: mu * 0.9
12.3 At what level of significance will you test the difference between the director's
claim and the survey results?
(a)
alpha = 0.01
(b)
alpha= 0.025
(c)
alpha = 0.05
(d) alpha = 0.975
12.4 What kind of test in terms of the tails will you perform?
Right -tailed
(b)
Left-tailed
(a)
(C)
(b) 1 sample t-test
(d) 2 sample t-test
(b)
(d)
(a)
(c)
Two-tailed
12.5 Which value(s) indicate(s) the rejection region?
(a)
1.96
(b) 1.645
(c)
1.782
12.6 If the test statistic = -1.67, referring to the rejection region and the test
statistic, what will happen to the hypotheses?
Reject HO
Do not reject HO
(b)
(d)
Reject H1
Do not reject H1
Solution
by Bartleby Expert
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