In a random sample of males, it was found that 24 write with their left hands and 222 do not. In a random sample of females, it was found that 68 write with their left hands and 457 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. a. Test the claim using a hypothesis test Consider the first sample to be the sample of males and the second sample to be the sample of females. What are the null and alternative hypotheses the hypothesis test? OA. Ho P1 SP2 H P1 #P2 OD. Ho P1 2 P2 H P1 #P2 O B. Ho P1 P2 H, P1 =P2 OC. Ho: P1 =P2 H1: P1 #P2 VE Ho P1 = P2 H: P1 P2 Identify the test statistic. z= -1.28 ure (Round to two decimal places as needed.) Identify the P-value. P-value = 101 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is greater than the significance level of a = 0.01, so fail to reject the null hypothesis. There is not sufficient evidence to support the claim that the rate of left-handedness among males is less an than that among females b. Test the claim by constructing an appropriate confidence interval. ns The 98% confidence interval is< (P1 - P2)
In a random sample of males, it was found that 24 write with their left hands and 222 do not. In a random sample of females, it was found that 68 write with their left hands and 457 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. a. Test the claim using a hypothesis test Consider the first sample to be the sample of males and the second sample to be the sample of females. What are the null and alternative hypotheses the hypothesis test? OA. Ho P1 SP2 H P1 #P2 OD. Ho P1 2 P2 H P1 #P2 O B. Ho P1 P2 H, P1 =P2 OC. Ho: P1 =P2 H1: P1 #P2 VE Ho P1 = P2 H: P1 P2 Identify the test statistic. z= -1.28 ure (Round to two decimal places as needed.) Identify the P-value. P-value = 101 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is greater than the significance level of a = 0.01, so fail to reject the null hypothesis. There is not sufficient evidence to support the claim that the rate of left-handedness among males is less an than that among females b. Test the claim by constructing an appropriate confidence interval. ns The 98% confidence interval is< (P1 - P2)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:In a random sample of males, it was found that 24 write with their left hands and 222 do not In a random sample of females, it was found that 68 write with their left hands and 457 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.
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of males and the second sample to be the sample of females. What are the null and alternative hypotheses
the hypothesis test?
OA. Ho P1 SP2
H: P1 #P2
OD. Ho P12 P2
H Pi #P2
O B. Ho P1 #P2
H P1 =P2
OC. Ho: P1 =P2
H: P1 #P2
VE Ho P1 = P2
H: P1 <P2
OF Ho P1 =P2
H1 P1>P2
Identify the test statistic.
z= -1.28
ur
(Round to two decimal places as needed.)
Identify the P-value.
P-value = 101
(Round to three decimal places as needed.)
What is the conclusion based on the hypothesis test?
The P-value is greater than the significance level of a = 0.01, so fail to reject the null hypothesis. There is not sufficient evidence to support the claim that the rate of left-handedness among males is less
an
than that among females.
b. Test the claim by constructing an appropriate confidence interval.
ns
The 98% confidence interval is < (Pi - P2) <U
(Round to three decimal places as needed)
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