You are testing the claim that the standard deviation of systolic blood pressure
ID: 2926384 • Letter: Y
Question
You are testing the claim that the standard deviation of systolic blood pressures of people of Asian descent is the same as the standard deviation of systolic blood pressures of people of European descent. It is known that systolic blood pressures in both groups are normally distributed. You work with a significance of 0.05.
You measure the systolic blood pressures of a sample of 28 people of Asian descent. The mean of this sample is 118.7 mmHg and the standard deviation is 6.4 mmHg.
You measure the systolic blood pressures of a sample of 31 people of European descent. The mean of this sample is 121.3 mmHg and the standard deviation is 5.9 mmHg.
1) Which hypothesis is your original claim? Type either null or alternative. ___________
With __________ confidence, there (is/is not)______ sufficient evidence to 4) (warrant/reject)___________ the claim that the standard deviation of systolic blood pressures of people of Asian descent is the same as the standard deviation of systolic blood pressures of people of European descent.
Perform the appropriate test. What is the P-value? Round your answer to four decimal places. ________
p-value = 0.662
I have solved each part , i have doubt in 1) Which hypothesis is your original claim? and 4) sufficient evidence to (warrant/reject)________ ,
Please answer correctly.
Explanation / Answer
here for this test original calim is null hypothesis as claim is that both std deviation are equal
also as p value you have claculated is greater then 0.05 ; threfore sufficient evidence to warrant the claim
please revert fot further explanation required,
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