A Researcher Wishes to Determine Whether People with High Blood $\mu _ { \mathrm { t } } - \mu _ { \mathrm { C } }$

A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet.Subjects were randomly assigned to a treatment group and a control group.The mean blood pressure was determined for each group,and a 90% confidence interval for the difference in the mean between the treatment group and the control group, $\mu _ { \mathrm { t } } - \mu _ { \mathrm { C } }$ was found to be (-26,-6) .

A) We are 90% confident that a randomly selected subject in the treatment group had a blood pressure between 6 and 26 points lower than a randomly selected subject in the control group.
B) We are confident that 90% of all people who follow the particular diet will have a blood pressure between 6 and 26 points lower than people who do not follow the diet.
C) We know with 90% confidence that people who follow the diet have an average blood pressure between 6 and 26 points lower than people who do not follow the diet.
D) We know with 90% confidence that people who follow the diet have an average blood pressure between 6 and 26 points higher than people who do not follow the diet.
E) We know that 90% of all experiments done on the population will show that the average blood pressure for people who follow the diet is between 6 and 26 points lower than the average blood pressure for people who do not follow the diet.

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