1a)In order to determine the true mean pulse rate of Ohio citizens you take a sample...

1a)In order to determine the true mean pulse rate of Ohio citizens you take a sample of 16 and the sample mean is 72 with a standard deviation of 9 beats per minute. Based on this data, the 95% confidence interval for the true mean pulse rate of Ohio Citizens is 72 plus or minus__________?

b) In order to determine the true mean pulse rate of Ohio citizens you take a sample of 16 and the sample mean is 72 with a standard deviation of 9 beats per minute.

If you wish to increase the accuracy of your estimate, what is the easiest way to do this
-increase sample size
or
-substitute the z value into the confidence interval equation?

Expert Solution

orchestra answered 2 years ago

1a. A medical stats class is interested in the mean pulse rate of "senior citizens". How...

1a. A medical stats class is interested in the mean pulse rate of "senior citizens". How many individuals are required to estimate the pulse rate with 99% confidence that the mean is within 2 beats per minute of the population mean. Based on 200 NIH data, assume a standard deviation of 12.5 beats per minute. b. Recent data suggests the standard deviation is closer to 17 bpm. How does a 99% CI with this standard deviation compare to (a) above?

A medical stats class is interested in the mean pulse rate of "senior citizens". How many...

A medical stats class is interested in the mean pulse rate of "senior citizens". How many individuals are required to estimate the pulse rate with 99% confidence that the mean is within 2 beats per minute of the population mean. Based on 2000 NIH data, assume a std deviation of 12.5 beats per minute. b) Recent data suggests the std deviation is closer to 17 bpm. How does a 99% CI with this std deviation compare to (a) above?

Dr. Schmidt want to determine the pulse rate of drinkers is higher than the pulse rate...

Dr. Schmidt want to determine the pulse rate of drinkers is higher than the pulse rate of non-drinkers. Dr. Schmidt took 2 independent samples of adult germans. Use the sample statistic below to test the claim that the pule rat of drinkers is higher than the pulse rate of non drinkers. Drinkers 100, mean of 87, standard deviation of 4.8 Non-drinkers 100, mean of 84, standard deviation of 5.3 A) Claim, null hypo, alternative hypo B) Test to be used,...

Resting Pulse Rate The mean resting pulse rate for men is 72 beats per minute. A...

Resting Pulse Rate The mean resting pulse rate for men is 72 beats per minute. A simple random sample of men who regularly work out at Planet Fitness is obtained and their resting pulse rates (in beats per minute) are listed below. Use a 0.05 significance level to test the claim that these sample pulse rates come from a population with a mean less than 72 beats per minute. Follow the 5-step example I posted (and the setup in question...

In order to find the rate constant for a third order rate law, you should (a)Take...

In order to find the rate constant for a third order rate law, you should (a)Take the slope of 1/ [A] vs time (b)Take the slope of 1/ [A] vs temp (c)Take the slope of Ln [A] vs time (d)Take the slope of Ln [A] vs temp (e)Use the rate law

the mean resting pulse rate of men is 76 beats per minute. a simple random sample...

the mean resting pulse rate of men is 76 beats per minute. a simple random sample of men who regularly work out at Mitch's gym is obtained and their resting pulse rates are listed below. use a 0.05 significance level to test the claim that these sample pulse rates come from a population with a mean less than 76 beats per minute. assume that the standard deviation of the resting pulse rates of all men who workout at Mitch's gym...

Explain how a pulse chase experiment can be used to determine the location and order of...

Explain how a pulse chase experiment can be used to determine the location and order of steps in the synthesis of a protein in the cell.

Compare your sample estimate to the current mean gas in the State of Ohio. Find the...

Compare your sample estimate to the current mean gas in the State of Ohio. Find the mean price of gasoline in the State of Ohio. You might try this GasBuddy website. Set up a null and alternative hypothesis to see if your sample for Dayton is enough to prove that the population mean gasoline price in Dayton is different than the mean price in Ohio. Test the hypotheses. Show your work. Using a significance level of 0.05, what is your...

The average pulse rate is known to be 80 beats per minutes. Suppose we take a...

The average pulse rate is known to be 80 beats per minutes. Suppose we take a sample of 30 adults and find that the average heart rate in the sample is 73.76 with a sample standard deviation of 7.06. We are interested in testing if the average pulse rate is actually lower than 80 beats per minute. a. Using the sample of 30 adults, what would the 95% confidence interval be for the population mean? b. What are the null...

Determine the sample size necessary for estimating the proportion of Ohio teachers that feel anxious about...

Determine the sample size necessary for estimating the proportion of Ohio teachers that feel anxious about teaching online. Suppose you want to be 99% confidence that the proportion is within 4.25 percentage points of the true proportion. Furthermore, suppose a study from a few years ago showed that 72% of Ohio teachers feel anxious about teaching online.

Question