Question text P1. A random sample was taken from 100 individuals to whom the blood glucose...
Question text
P1. A random sample was taken from 100 individuals to whom the
blood glucose level was measured, obtaining a sample mean of 110 mg
/ cc. The population standard deviation is known to be 20 mg /
cc.
to. Estimate the standard error for the sample average. (5
pts)
b. Calculate the error if a confidence interval for the mean is to
be constructed with 90% confidence. (5 pts)
c. Build the confidence interval for the average or mean with 90%
confidence. (10 pts)
d. What should be the sample size if an error of 2 mg / cc is
desired and the same reliability is to be maintained? (10 pts)
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Question text
P1. A random sample was taken from 100 individuals to whom the
blood glucose...
Question 5 5 pts A diabetic patient records 100 blood glucose levels, and finds that the...
Question 5 5 pts A diabetic patient records 100 blood glucose levels, and finds that the mean is given by z = 90 mg/dl, and the standard deviation given by s = 25 mg/dl. Construct the 90% confidence interval for the mean score of all such blood glucose levels. Round your answer to the nearest tenth, if necessary. 74.6 mg/dl<< 77.8 mg/dl O 69.2 mg/dl << 83.2 mg/dl 85.8 mg/dl << 94.2 mg/dl 80.2 mg/dl << 98.2 mg/dl
Suppose that a simple random sample is taken from a normal population having a standard deviation...
Suppose that a simple random sample is taken from a normal population having a standard deviation of 6 for the purpose of obtaining a 90% confidence interval for the mean of the population. The margin of error for a sample size of 16 is ??? (Round to four decimal places as needed.) The margin of error for a sample size of 81 is ??? (Round to four decimal places as needed.)
d. Determine the sample mean and sample standard deviation of the Blood Glucose for both men...
d. Determine the sample mean and sample standard deviation of the Blood Glucose for both men and women. Test the claim that the average mean Blood Glucose of women is different from the average mean Blood Glucose of men. Use α = 0.01. Hint: It would be helpful to sort the data based on gender. (8 points) Mean Glucose Female Standard Deviation Glucose Female Sample Size Female Mean Glucose Male Standard Devation Male Sample Size Male Hypotheses Test Statistic Critical...
Suppose that a simple random sample is taken from a normal population having a standard deviation...
Suppose that a simple random sample is taken from a normal population having a standard deviation of 11 for the purpose of obtaining a 90% confidence interval for the mean of the population a. If the sample size is 9, obtain the margin of error. b. Repeat part (a) for a sample size of 36 a. The margin of error for a sample size of 9 is (Round to two decimal places as needed.) b. The margin of error for...
Gender Blood Glucose Female 94 d. Determine the sample mean and sample standard deviation of the...
Gender Blood Glucose Female 94 d. Determine the sample mean and sample standard deviation of the Blood Glucose for both men and women. Test the claim that the average mean Blood Glucose of women is different from the average mean Blood Glucose of men. Use α = 0.01. Hint: It would be helpful to sort the data based on gender. (8 points) Male 92 Male 93 Mean Glucose Female Female 94 Standard Deviation Glucose Female Male 98 Sample Size Female...
Suppose that a simple random sample is taken from a normal population having a standard deviation...
Suppose that a simple random sample is taken from a normal population having a standard deviation of 15 for the purpose of obtaining a 95% confidence interval for the mean of the population. a. If the sample size is 44, obtain the margin of error. b. Repeat part (a) for a sample size of 25
answer a & b please Suppose that a simple random sample is taken from a normal...
answer a & b please
Suppose that a simple random sample is taken from a normal population having a standard deviation of 15 for the purpose of obtaining a 95% confidence interval for the mean of the population. a. If the sample size is 9, obtain the margin of error. b. Repeat part (a) for a sample size of 16. a. The margin of error for a sample size of 9 is □ (Round to two decimal places as needed.)
A physician would like to know the mean fasting blood glucose value (milligrams per 100 ml)...
A physician would like to know the mean fasting blood
glucose value (milligrams per
100 ml) of patients seen in a diabetes clinic over the past 10
years. Determine the number
of records the physician should examine in order to obtain a 90%
confidence interval for
µ if the desired width of the interval is 6 units (SE = 3) and a
pilot sample yields a
variance of 60. Show all work or no credit will be
received.
13. A...
Suppose that a simple random sample is taken from a normal population having a standard deviation...
Suppose that a simple random sample is taken from a normal population having a standard deviation of 11 for the purpose of obtaining a 95% confidence interval for the mean of the population. a. If the sample size is 16, obtain the margin of error. b. Repeat part (a) for a sample size of 81. a. The margin of error for a sample size of 16 is ??? (Round to two decimal places as needed.) b. The margin of error...
Suppose a random sample of size 17 was taken from a normally distributed population, and the...
Suppose a random sample of size 17 was taken from a normally distributed population, and the sample standard deviation was calculated to be s = 5.0. a) Calculate the margin of error for a 95% confidence interval for the population mean. Round your response to at least 3 decimal places. b) Calculate the margin of error for a 90% confidence interval for the population mean. Round your response to at least 3 decimal places.
Question 5 5 pts A diabetic patient records 100 blood glucose levels, and finds that the mean is given by z = 90 mg/dl, and the standard deviation given by s = 25 mg/dl. Construct the 90% confidence interval for the mean score of all such blood glucose levels. Round your answer to the nearest tenth, if necessary. 74.6 mg/dl<< 77.8 mg/dl O 69.2 mg/dl << 83.2 mg/dl 85.8 mg/dl << 94.2 mg/dl 80.2 mg/dl << 98.2 mg/dl
d. Determine the sample mean and sample standard deviation of the Blood Glucose for both men and women. Test the claim that the average mean Blood Glucose of women is different from the average mean Blood Glucose of men. Use α = 0.01. Hint: It would be helpful to sort the data based on gender. (8 points) Mean Glucose Female Standard Deviation Glucose Female Sample Size Female Mean Glucose Male Standard Devation Male Sample Size Male Hypotheses Test Statistic Critical...
Suppose that a simple random sample is taken from a normal population having a standard deviation of 11 for the purpose of obtaining a 90% confidence interval for the mean of the population a. If the sample size is 9, obtain the margin of error. b. Repeat part (a) for a sample size of 36 a. The margin of error for a sample size of 9 is (Round to two decimal places as needed.) b. The margin of error for...
answer a & b please
Suppose that a simple random sample is taken from a normal population having a standard deviation of 15 for the purpose of obtaining a 95% confidence interval for the mean of the population. a. If the sample size is 9, obtain the margin of error. b. Repeat part (a) for a sample size of 16. a. The margin of error for a sample size of 9 is □ (Round to two decimal places as needed.)
A physician would like to know the mean fasting blood
glucose value (milligrams per
100 ml) of patients seen in a diabetes clinic over the past 10
years. Determine the number
of records the physician should examine in order to obtain a 90%
confidence interval for
µ if the desired width of the interval is 6 units (SE = 3) and a
pilot sample yields a
variance of 60. Show all work or no credit will be
received.
13. A...
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