A team of researchers is investigating a drug for reducing systolic blood pressure. Two groups each...
A team of researchers is investigating a drug for reducing systolic blood pressure. Two groups each has 6 subjects were selected in this study. Group A is the control group. The treatment was used for group B. A fixed increased amount of doses were used on group C. The systolic blood pressures were measured for all groups and are listed below. This team wishes to test whether there is a statistically significant difference in average systolic blood pressures between the three groups. If the assumption of normality and equal variances is accepted, which of the following conclusions is(are) correct from the multiple comparisons t-test using Bonferroni correction at 5% level of significance?
Group A - 144, 152, 155, 149, 151, 148
Group B - 143, 152, 148, 145, 144, 147
Group C - 140, 144, 140, 138, 135, 139
| a. |
There is statistically significant difference between Group A and Group C. |
|
| b. |
There is no statistically significant difference between Group A and Group B. |
|
| c. |
There is no statistically significant difference between Group A and Group C. |
|
| d. |
There is no statistically significant difference between Group B and Group C. |
|
| e. |
There is statistically significant difference between Group A and Group B. |
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A team of researchers is investigating a drug for reducing
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