Question: From the data on CAT scans in Exercise 8-45 (a) Find a two-sided 95% confidence interval for the standard deviation. (b) What should you do

From the data on CAT scans in Exercise 8-45

(a) Find a two-sided 95% confidence interval for the standard deviation.

(b) What should you do to address any reservations about the confidence interval you found in part (a)?

Exercise-45

A healthcare provider monitors the number of CAT scans performed each month in each of its clinics. The most recent year of data for a particular clinic follows (the reported variable is the number of CAT scans each month expressed as the number of CAT scans per thousand members of the health plan): 2.31, 2.09, 2.36, 1.95, 1.98, 2.25, 2.16, 2.07, 1.88, 1.94, 1.97, 2.02.

Step by Step Solution

★★★★★

3.34 Rating (151 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a 95 two sided confidence interval for n 12 s 01564 b ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Applied Statistics and Probability Questions!

The data used in Example 43 arc taken from the data set given in DS 12.11.2, which relates the variable % scrap to the number of times that the metal plate is passed through the rollers. It is useful...

In a simple linear regression analysis with n = 22 data points, an estimate ^1 = 56.33 is obtained with s.e.(^1) = 3.78. (a) Calculate a two-sided 95% confidence interval for the slope parameter 1s....

A company that dumps its industrial waste into a river has to meet certain restrictions. One particular constraint involves the minimum amount of dissolved oxygen that is needed to support aquatic...

Table 9.6.2 shows the 2015 performance of stocks recommended by Gene Marcial, whose list was published in Forbes in December 2014. a. Compute the average and briefly describe its meaning. b. Compute...

Table 9.6.2 shows the performance of stocks recommended by securities firms. a. Compute the average and briefly describe its meaning. b. Compute the standard deviation and briefly describe its...

In a little over a month, from June 5, 1879, to July 2, 1879, Albert Michelson measured the velocity of light in air 100 times (Stigler, Annals of Statistics, 1977). Today we know that the true value...

To help you decide which of your two current suppliers deserves the larger contract next year, you have rated a random sample of plastic cases from each one. The data are a composite of several...

MS1023 Business Statistics with Computer Applications MS1023 Business Statistics w/Comp Apps I Homework #3 - Use Red Par Score Form Chp. 7: Questions 1-50 1. Kristen Ashford purchased the subscribers...

8 points) (Pagano/Gauvreaux Ch9 Q5) The distributions of systolic and diastolic blood pressures for female diabetics between the ages of 30 and 34 have unknown means. However, their standard...

1: A company manufactures bars of soap that are supposed to weigh exactly (on average) 10 ounces. A sample is taken: n=20; X= 10.20 oz; s = 0.80 oz (a) Test at = .05 (b) Construct a 95% CIE of...

StanfordBinet IQ Test scores are normally distributed with a mean score of 100 and a standard deviation of 16. a. Sketch the distribution of StanfordBinet IQ test scores. b. Write the equation that...

You are hired as an advertiser but you want more money for the launch of an advertisement write a dialogue in which you are convincing your Manager for more budget. While using communication...

Debt: Capital can be raised through bank loans at a pretax cost of 6 % . Also, bonds can be issued at a pretax cost of 7 . 1 % .

15 Suppose that the economy is self-regulating, that the price level is 110, that the quantity demanded of Real GDP is $4 trillion, that the quantity supplied of Real GDP in the short run is $4.9...

Estimate the incidence rate ratio (IRR) comparing mortality incidence between period A and period B, and provide a 95% CI about this estimate? Cancer A study was conducted concerning the effect of...

There were 722 patients admitted to the ICU for H1N1 in Australia and New Zealand from June 1 to August 31, 2009 (winter season). The total population of Australia and New Zealand is approximately...

Using the incidence rates calculated in Problem 14.73, test whether there are significant differences in incidence rates by region over the 7-week period. Provide a two-sided p-value. (Note: Assume...

I am doing a quiz and cant work out which of the following is an example of a statistically significant result? i thinks its b but just want to confirm please. a 2(1) = 12.49, p

Please help me with only question 1 parts C and D. I have included parts A and B only as a reference if needed to answer C and D. I have included a link to the Sugar Content Data and a picture as...

Please help Example 6.15 (page 383) gives a test of a hypothesis about the mean consumption of sugar sweetened beverages at your university based on a sample of size n:100. The hypotheses are...