Reference no: EM132399936
A) If α = 0.18, and β = 0.1, complete the following questions by inserting the appropriate probability of each. Decimal Answer.
The statistical decision is to reject the null, and H0 is really false (i.e., Power)
B) If α = 0.15, and β = 0.21, complete the following questions by inserting the appropriate probability of each. Decimal Answer.
The statistical decision is to fail to reject the null, and H0 is really false (i.e., a Type II error)
C) A health care professional wants to determine whether individuals with hypertension who take Atenolol have significantly lower systolic blood pressure than individuals with hypertension who do not take Atenolol. For individuals who have not been prescribed Atenolol, the population systolic blood pressure mean is 165 (µ = 165). The sample of 30 individuals who take Atenolol have an average (mean) systolic blood pressure of 147, with a sample standard deviation of 6. On the basis of these data, can the researcher conclude that the Atenolol significantly lowers systolic blood pressure?
The appropriate statistical procedure for this example would be a:
t-test
z-test
chi-square goodness of fit
chi-square test for independence
D) A health care professional wants to determine whether individuals with hypertension who take Atenolol have significantly lower systolic blood pressure than individuals with hypertension who do not take Atenolol. For individuals who have not been prescribed Atenolol, the population systolic blood pressure mean is 165 (µ = 165). The sample of 30 individuals who take Atenolol have an average (mean) systolic blood pressure of 147, with a sample standard deviation of 6. On the basis of these data, can the researcher conclude that the Atenolol significantly lowers systolic blood pressure?
Is this a one-tailed or a two-tailed test?
one-tailed
two-tailed
E) A health care professional wants to determine whether individuals with hypertension who take Atenolol have significantly lower systolic blood pressure than individuals with hypertension who do not take Atenolol. For individuals who have not been prescribed Atenolol, the population systolic blood pressure mean is 165 (µ = 165). The sample of 30 individuals who take Atenolol have an average (mean) systolic blood pressure of 147, with a sample standard deviation of 6. On the basis of these data, can the researcher conclude that the Atenolol significantly lowers systolic blood pressure?
The most appropriate alternative hypothesis (in words) would be:
There is no significant difference in systolic blood pressure when comparing people who take Atenolol to the general population of people who do not take Atenolol.
There is a significant increase in systolic blood pressure when comparing people who take Atenolol to the general population of people who do not take Atenolol.
People taking Atenolol will not experience a significantly lower systolic blood pressure when compared to the general population of people who do not take Atenolol.
People taking Atenolol will experience a significantly lower systolic blood pressure when compared to the general population of people who do not take Atenolol.