Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 73. A random sample of 25 stroke patients resulted in an average CBF of x = 69.9 with a standard deviation of s = 12. Test the hypothesis that the average CBF for strok patients is different from that of healthy people using a = 0.05. State the null and alternative hypotheses. A USE SALT O Ho: H < 73 versus H u= 73 O Ho: u = 73 versus H: H = 73 O Họi u < 73 versus H: u > 73 O Hại H= 73 versus H u< 73 O Ho: H = 73 versus H: u = 73 State the test statistic. (Round your answer to three decimal places.) State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) t> State the conclusion. O H, is not rejected. There is sufficient evidence to conclude that the average CBF for stroke patients is different from 73. O H, is rejected. There is insufficient evidence to conclude that the average CBF for stroke patients is different from 73. O H, is rejected. There is sufficient evidence to conclude that the average CBF for stroke patients is different from 73. O H, is not rejected. There is insufficient evidence to conclude that the average CBF for stroke patients different from 73.

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Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 73. A random sample of 25 stroke patients resulted in an average CBF of x = 69.9 with a standard deviation of s = 12. Test the hypothesis that the average CBF for stroke
patients is different from that of healthy people using a = 0.05.
State the null and alternative hypotheses.
A USE SALT
O Ho: µ < 73 versus H: µ = 73
O Ho: u + 73 versus H: µ = 73
O Ho: u < 73 versus H: u > 73
O Ho: u = 73 versus H: u < 73
O Ho: u = 73 versus H: u # 73
State the test statistic. (Round your answer to three decimal places.)
t =
State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.)
t >
t <
State the conclusion.
O H, is not rejected. There is sufficient evidence to conclude that the average CBF for stroke patients is different from 73.
O H, is rejected. There is insufficient evidence to conclude that the average CBF for stroke patients is different from 73.
O H, is rejected. There is sufficient evidence to conclude that the average CBF for stroke patients is different from 73.
O H, is not rejected. There is insufficient evidence to conclude that the average CBF for stroke patients is different from 73.
Transcribed Image Text:Cerebral blood flow (CBF) in the brains of healthy people is normally distributed with a mean of 73. A random sample of 25 stroke patients resulted in an average CBF of x = 69.9 with a standard deviation of s = 12. Test the hypothesis that the average CBF for stroke patients is different from that of healthy people using a = 0.05. State the null and alternative hypotheses. A USE SALT O Ho: µ < 73 versus H: µ = 73 O Ho: u + 73 versus H: µ = 73 O Ho: u < 73 versus H: u > 73 O Ho: u = 73 versus H: u < 73 O Ho: u = 73 versus H: u # 73 State the test statistic. (Round your answer to three decimal places.) t = State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) t > t < State the conclusion. O H, is not rejected. There is sufficient evidence to conclude that the average CBF for stroke patients is different from 73. O H, is rejected. There is insufficient evidence to conclude that the average CBF for stroke patients is different from 73. O H, is rejected. There is sufficient evidence to conclude that the average CBF for stroke patients is different from 73. O H, is not rejected. There is insufficient evidence to conclude that the average CBF for stroke patients is different from 73.
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