Question

The following are the systolic blood pressures (mm Hg) of 12 patients undergoing drug therapy for...

The following are the systolic blood pressures (mm Hg) of 12 patients undergoing drug therapy for hypertension

183, 152, 178, 157, 194, 163, 144, 114, 178, 152, 118, 158

Can we conclude on the basis of these data that the population mean is less than 165? Let α =0.05.

1. Write the hypotheses, indicate the claim

2. Find the critical value t-value

3. Calculate the standardized t -value

4. What is the decision

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
When subjects were treated with a​ drug, their systolic blood pressure readings​ (in mm​ Hg) were...
When subjects were treated with a​ drug, their systolic blood pressure readings​ (in mm​ Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a 0.05 significance​ level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood​ pressure? Before 189 175 188...
When subjects were treated with a​ drug, their systolic blood pressure readings​ (in mm​ Hg) were...
When subjects were treated with a​ drug, their systolic blood pressure readings​ (in mm​ Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a 0.05 significance​ level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood​ pressure? Before 161 169 158...
When subjects were treated with a​ drug, their systolic blood pressure readings​ (in mm​ Hg) were...
When subjects were treated with a​ drug, their systolic blood pressure readings​ (in mm​ Hg) were measured before and after the drug was taken. Results are given in the table below. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Using a0.01 significance​ level, is there sufficient evidence to support the claim that the drug is effective in lowering systolic blood​ pressure? Before 210 188 175 157...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1. Hypertension is commonly defined as a systolic blood pressure above 140. a. If a woman between the ages of 18 and 24 is randomly selected, find the probability that her systolic blood pressure is greater than 140. b. If 4 women in that age bracket are randomly selected, find the probability that their mean systolic blood...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1. Hypertension is commonly defined as a systolic blood pressure above 140. a. If a woman between the ages of 18 and 24 is randomly selected, find the probability that her systolic blood pressure is greater than 140. b. If 4 women in that age bracket are randomly selected, find the probability that their mean systolic blood...
For women aged 18 to 24, systolic blood pressure (in mm Hg) is normally distributed with...
For women aged 18 to 24, systolic blood pressure (in mm Hg) is normally distributed with a mean of 114.8 and a standard deviation of 13.1 (based on data from the National Health Survey). Hypertension is commonly defined as a systolic blood pressure above 140. Let X represent the systolic blood pressure of a randomly selected woman between the ages of 18 and 24. a. Find the probability the mean systolic blood pressure of four randomly selected women would fall...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1. If 23 women aged 18-24 are randomly selected, find the probability that their mean systolic blood pressure is between 119 and 122.
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean...
For women aged 18-24, systolic blood pressures (in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1 (based on data from the National Health Survey). If 15 women in that age bracket are randomly selected, find the probability that their mean systolic blood pressure is between 110 and 115. Select one: a. 41.89% b. 39.60% c. 49.70% d. None of other answers is neccessary true. e. 44.56%
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 2 hours after taking the drug are shown in the table below. Using this data, find the 99% confidence interval for the true difference in blood pressure for each patient after taking the new drug. Assume that the blood pressures are normally distributed for the population of patients both before and...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure...
A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic blood pressure (in millimeters of mercury) for nine patients before taking the new drug and 2 hours after taking the drug are shown in the table below. Is there enough evidence to support the company's claim? Let d=(blood pressure before taking new drug)−(blood pressure after taking new drug)d=(blood pressure before taking new drug)−(blood pressure after taking new drug). Use a significance level of α=0.01 for the...