Question: Could please help me find the upper and lower bound? I keep getting the wrong answer and not sure what I am doing incorrect. Thank

Could please help me find the upper and lower bound? I keep getting the wrong answer and not sure what I am doing incorrect. Thank you!

Score: 1.69 of 6 pts 4 of 6 (6 complete) HW Score: 62.87%, 10.69 of 17 pts *9.3.9 Question Help A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s , is determined to be 13.1. Complete parts (a) through (c). (b) Construct a 90% confidence interval for o2 if the sample size, n, is 30. The lower bound is 8.93 . (Round to two decimal places as needed.) The upper bound is 21.45 . (Round to two decimal places as needed.) How does increasing the sample size affect the width of the interval? OO The width does not change The width increases The width decreases (c) Construct a 98% confidence interval for o2 if the sample size, n, is 20. The lower bound is . (Round to two decimal places as needed.)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

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 Mathematics Questions!

Running Case This Bar Saves Lives(TBSL): Pricing Under Pressure Uh-Oh, We Got A Meeting, Now What Do We Do? The TBSL team had discussed at great length whether to go after Target as a seller of their...

Please help with questions (A-I) and also, find the upper and lower bound. Thank you. Six different national brands of chocolate chip cookies were randomly selected at the supermarket. The grams of...

Please help me with this, I keep getting it wrong. sume that historical returns and future returns are independently and identically distributed and drawn from the same distribution a. Calculate the...

I can not seem to get the correct answer for the upper and lower bound. Could you please help me figure out the correct answer. What am I doing wrong? Thank you os much! Score: 0 of 4 pts 9 of 10 (6...

1. Mistakes occur sometimes when handling customer information causing a company to have to apologize to its customers. What 3 characteristics are suggested to be included in an apology in order to...

A manufacturer of smartphones is interested in designing a new phone around the way a typical customer would use it. One of the most important characteristics for any smartphone is battery life since...

I'm getting this wrong. Not sure what I'm doing that is incorrect. 170 plus or minus 2.576 square root .170 (1-.170) divided by 200. I'm getting lower and upper limit answer= 169.932, 170.068. Please...

Hi There how are you doing ??? I Keep getting this wrong how can someone help me please ??? Homework: Sec 2.1 Score: 0 of 3 pts 3 of 5 (4 complete) X 2.1.18 Use the frequency distribution shown below...

Location Income ($1000) Size Years Credit Balance($) Urban 54 3 12 4016 Rural 30 2 12 3159 Suburban 32 4 17 5100 Suburban 50 5 14 4742 Rural 31 2 4 1864 Urban 55 2 9 4070 Rural 37 1 20 2731 Urban 40...

Think again about the four costs of quality. Describe how each would change if we hired more inspectors without changing any other aspects of quality.

In the Dumas-bulb technique for determining the molar mass of an unknown liquid, you vaporize the sample of a liquid that boils below 100oC in a boiling-water bath and determine the mass of vapor...

can the inventory retail method be used for annual statements

This is the basic program requirement That three .py files will remain what it looks like and don't need to add new code. VideoStream.py, Servery.py,ClientLauncher.py And those three .py files are...