lest the claim using a hypothesis test. nsider the first sample to be the sample of males and the second sample to be the sample of females. What are the null ar ernative hypotheses for the hypothesis test? A. Ho: P1 = P2 H1: P, #P2 O B. Ho: P1 2 P2 H,: P1 #P2 C. Ho: P1 = P2 H,:Pq P2 entify the test statistic.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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In a random sample of males, it was found that 25 write with their left hands and 223 do not. In a random sample of females, it
was found that 70 write with their left hands and 470 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 for the hypothesis test?
O A. Ho: P1 = P2
H1: P1 # P2
'C. Ho: P1 = P2
H1:Pq <P2
O B. Ho: P1 2 P2
H1: P, # P2
O D. Ho: P1 <P2
H1: P1 # P2
O E. Ho: P, # P2
H1:P1 = P2
O F. Ho: P1 = P2
H1: P1 > P2
Identify the test statistic.
z=
(Round to two decimal places as needed.)
Transcribed Image Text:In a random sample of males, it was found that 25 write with their left hands and 223 do not. In a random sample of females, it was found that 70 write with their left hands and 470 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 for the hypothesis test? O A. Ho: P1 = P2 H1: P1 # P2 'C. Ho: P1 = P2 H1:Pq <P2 O B. Ho: P1 2 P2 H1: P, # P2 O D. Ho: P1 <P2 H1: P1 # P2 O E. Ho: P, # P2 H1:P1 = P2 O F. Ho: P1 = P2 H1: P1 > P2 Identify the test statistic. z= (Round to two decimal places as needed.)
In a study of treatments for very painful "cluster" headaches, 152 patients were treated with oxygen and 152 other patients were
given a placebo consisting of ordinary air. Among the 152 patients in the oxygen treatment group, 120 were free from
headaches 15 minutes after treatment. Among the 152 patients given the placebo, 32 were free from headaches 15 minutes
after treatment. Use a 0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through
(c) below.
a. Test the claim using a hypothesis test.
Consider the first sample to be the sample of patients treated with oxygen and the second sample to be the sample of patients
given a placebo. What are the null and alternative hypotheses for the hypothesis test?
O A. Ho: P1 SP2
O B. Ho: P1 # P2
H1: P1 = P2
O C. Ho: P1 =P2
H1:P1 <P2
H1: P1 # P2
D. Ho: P1 = P2
H1: P1 > P2
O E. Ho: P1 2 P2
H,: P1 # P2
O F. Ho: P1 = P2
H4: P1 # P2
Identify the test statistic.
Z=
(Round to two decimal places as needed.)
Transcribed Image Text:In a study of treatments for very painful "cluster" headaches, 152 patients were treated with oxygen and 152 other patients were given a placebo consisting of ordinary air. Among the 152 patients in the oxygen treatment group, 120 were free from headaches 15 minutes after treatment. Among the 152 patients given the placebo, 32 were free from headaches 15 minutes after treatment. Use a 0.05 significance level to test the claim that the oxygen treatment is effective. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of patients treated with oxygen and the second sample to be the sample of patients given a placebo. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P1 SP2 O B. Ho: P1 # P2 H1: P1 = P2 O C. Ho: P1 =P2 H1:P1 <P2 H1: P1 # P2 D. Ho: P1 = P2 H1: P1 > P2 O E. Ho: P1 2 P2 H,: P1 # P2 O F. Ho: P1 = P2 H4: P1 # P2 Identify the test statistic. Z= (Round to two decimal places as needed.)
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