Question

Use the given information to find the number of degrees of freedom, the critical values x2l and x2r, and the confidence interval estimate of standard deviation. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Women 80% confidence; n=23, s=65.7 A. df=_ B. x2l=_ C. x2r=_ D. The confidence interval estimate of standard deviation is _< standard deviation _<

Name: use the given information to find the number of degrees of freedom the critical values x2l and x2r and the confidence interval estimate of standard deviation it is reasonable to assume that 44261
Uploaded: 2023-07-31T22:32:07-08:00
Duration: 1 min 50 s
Channel: Ana Carolina Da Cruz
Description: use the given information to find the number of degrees of freedom the critical values x2l and x2r and the confidence interval estimate of standard deviation it is reasonable to assume that 44261

          Use the given information to find the number of degrees of freedom, the critical values x2l and x2r, and the confidence interval estimate of standard deviation. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Women 80% confidence; n=23, s=65.7

A. df=_
B. x2l=_
C. x2r=_
D. The confidence interval estimate of standard deviation is _< standard deviation _<

Added by Mercedes D.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Ana Carolina Da Cruz

07/31/2023

Step 1

The formula for degrees of freedom is: df = n - 1 where n is the sample size. In this case, n = 23, so: df = 23 - 1 = 22 Now, we need to find the critical values x2l and x2r. Since we are given an 80% confidence level, we need to find the chi-square values Show more…

Show all steps

Thanks for your feedback!

Use the given information to find the number of degrees of freedom, the critical values x2l and x2r, and the confidence interval estimate of standard deviation. It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. Platelet Counts of Women 80% confidence; n=23, s=65.7 A. df=_ B. x2l=_ C. x2r=_ D. The confidence interval estimate of standard deviation is _< standard deviation _<