In a random sample of males, it was found that 21 write with their left hands and 224 do not. In a random sample of females, it was found that 67 write with left hands and 448 do not. Use a 0.01 significance level to test the claim that the rate of left-handedness among males is less than that among females Complete parts (a) through (c) below OF. H P1 P2 H P P2 D. Ho P1 P2 OE. Ho Pt SP2 H Pi P2 H, Pr P2 Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? V evidence to support the claim the significance level of a = 0.01, so the null hypothesis. There The P-value is that the rate of left-handedness among males is less than that among females. b. Test the claim by constructing an appropriate confidence interval. The 98% confidence interval is< (P -P2)

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In a random sample of males, it was found that 21 write with their left hands and 224 do not. In a random sample of females, it was found that 67 write with the
left hands and 448 do not. Use a 0.01 significance level to test the claim that the rate of left-handedness among males is less than that among females.
Complete parts (a) through (c) below.
OF. Ho Pt P2
H P1 <P2
O E. Ho P1SP2
D. Ho P1 P2
H Pi #P2
Identify the test statistic.
(Round to two decimal places as needed.)
Identify the P-value.
P-value =
(Round to three decimal places as needed.)
What is the conclusion based on the hypothesis test?
v the null hypothesis. There
V evidence to support the claim
The P-value is
V the significance level of a = 0.01, so
that the rate of left-handedness among males is less than that among females.
b. Test the claim by constructing an appropriate confidence interval.
The 98% confidence interval is < (p,-P2) <U
(Round to three decimal places as needed.)
What is the conclusion based on the confidence interval?
V There
Vevidence
0, it appears that the two rates of left-handedness are
Because the confidence interval limits
to support the claim that the rate of left-handedness among males is less than that among females.
c. Based on the results, is the rate of left-handedness among males less than the rate of left-handedness among females?
O A. The rate of left-handedness among males does not appear to be less than the rate of left-handedness among females.
O B. The rate of left-handedness among males does appear to be less than the rate of left-handedness among females because the resuits are not
statistically significant
O C. The rate of left-handedness among males does appear to be less than the rate of left-handedness among females because the results are
statistically significant.
O D. The results are inconclusive.
Click to select your answer(s).
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Transcribed Image Text:In a random sample of males, it was found that 21 write with their left hands and 224 do not. In a random sample of females, it was found that 67 write with the left hands and 448 do not. Use a 0.01 significance level to test the claim that the rate of left-handedness among males is less than that among females. Complete parts (a) through (c) below. OF. Ho Pt P2 H P1 <P2 O E. Ho P1SP2 D. Ho P1 P2 H Pi #P2 Identify the test statistic. (Round to two decimal places as needed.) Identify the P-value. P-value = (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? v the null hypothesis. There V evidence to support the claim The P-value is V the significance level of a = 0.01, so that the rate of left-handedness among males is less than that among females. b. Test the claim by constructing an appropriate confidence interval. The 98% confidence interval is < (p,-P2) <U (Round to three decimal places as needed.) What is the conclusion based on the confidence interval? V There Vevidence 0, it appears that the two rates of left-handedness are Because the confidence interval limits to support the claim that the rate of left-handedness among males is less than that among females. c. Based on the results, is the rate of left-handedness among males less than the rate of left-handedness among females? O A. The rate of left-handedness among males does not appear to be less than the rate of left-handedness among females. O B. The rate of left-handedness among males does appear to be less than the rate of left-handedness among females because the resuits are not statistically significant O C. The rate of left-handedness among males does appear to be less than the rate of left-handedness among females because the results are statistically significant. O D. The results are inconclusive. Click to select your answer(s). 8:39 AM d 12/7/2020 LG Dause clear 6. backspace insert hame Pg up Y. delete end 8. enter pause MI ↑ shift 1. enter alt fn ctri
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