Question

The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of...

The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of a person is measured 18 times over several days and the standard deviation of these measurements for the person is known to be σ=8.3 σ = 8.3 mmHg. Let μ μ be the true average blood pressure for that person and let x¯=104 x ¯ = 104 be the average of the 18 measurements.

(a) Find a two-sided 94% confidence interval for μ. One can be 94% confident that the true average blood pressure μ μ for that person is between Answer and Answer .

(b) Find a lower-bound 94% confidence interval for μ. One can be 94% confident that the true average blood pressure μ μ for that person is at least Answer .

(c) Find an upper-bound 94% confidence interval for μ. One can be 94% confident that the true average blood pressure μ μ for that person is at most Answer .

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of...
The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of a person is measured 36 times over several days and the standard deviation of these measurements for the person is known to be σ = 3.6 mmHg. Let μ be the true average blood pressure for that person and let the average of the 36 measurements be 7.1. Find a upper-bound 90% confidence interval for μ. One can be 90% confident that the true...
The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of...
The blood pressure of a person changes throughout the day. Suppose the systolic blood pressure of a person is measured 32 times over several days and the standard deviation of these measurements for the person is known to be ?=9.3 mmHg. Let ? be the true average blood pressure for that person and let x¯=137 be the average of the 32 measurements. (a) Find a two-sided 98% confidence interval for ?. One can be 98% confident that the true average...
Suppose systolic blood pressure of 18-year-old females is approximately normally distributed with a mean of 119...
Suppose systolic blood pressure of 18-year-old females is approximately normally distributed with a mean of 119 mmHg and a variance of 619.51 mmHg. If a random sample of 21 girls were selected from the population, find the following probabilities: a) The mean systolic blood pressure will be below 116 mmHg. probability = b) The mean systolic blood pressure will be above 120 mmHg. probability = c) The mean systolic blood pressure will be between 107 and 119 mmHg. probability =...
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 22 hours after taking the drug are shown in the table below. Using this data, find the 90%90% 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. Using this data, find the 90% 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...
Listed below are systolic blood pressure measurements​ (in mm​ Hg) obtained from the same woman. ​a)...
Listed below are systolic blood pressure measurements​ (in mm​ Hg) obtained from the same woman. ​a) Find the regression​ equation, letting the right arm blood pressure be the predictor​ (x) variable. ​b) Find the best predicted systolic blood pressure in the left arm given that the systolic blood pressure in the right arm is 90 mm Hg. Right Arm 101 100 94 79 80 Left Arm 175 169 144 145 143 ​a) The regression equation is ModifyingAbove y with caret...
A study was conducted to investigate the effect of a new drug in reducing systolic blood...
A study was conducted to investigate the effect of a new drug in reducing systolic blood pressure in women. The sample average systolic blood pressure of 36 women who took the new drug was shown to be 24 mmHg with a standard deviation of 6 mmHG. The sample systolic blood pressure of 40 women who took the standard drug was measured to be 36 mmHG with a standard deviation of 4 mmHG. The claim is that the new drug will...
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 95% 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. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution with...
a. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution with mean μ = 122 millimeters and standard deviation σ = 16 millimeters. Systolic blood pressure for females follows a normal distribution. Calculate the z-scores for a female systolic blood pressure of 136 millimeters (Round answer to 3 decimal places). b. The systolic blood pressure (given in millimeters) of females has an approximately normal distribution with mean μ = 122 millimeters and standard deviation σ...
Listed below are systolic blood pressure measurements​ (in mm​ Hg) obtained from the same woman. Find...
Listed below are systolic blood pressure measurements​ (in mm​ Hg) obtained from the same woman. Find the regression​ equation, letting the right arm blood pressure be the predictor​ (x) variable. Find the best predicted systolic blood pressure in the left arm given that the systolic blood pressure in the right arm is 80 mm Hg. Use a significance level of 0.05. Right Arm    103 102    94 75    74 Left Arm    177 170 146    143 144...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT