.8.9.escGiven are five observations for two variables, and y.OODevelop the 95% confidence and prediction intervals when x = 18.X8(to 4 decimals)t-value(to 3 decimals)Sû*(to 4 decimals)(to 4 decimals)/0/0/OOO7Q1 8 119 15 7X8 predConfidence Interval for x = 18(to 2 decimals)Prediction Interval for x = 18(to 2 decimals)The two intervals are different because there is more variability associated with predicting an individualHide FeedbackPartially Correct38³888F4F5F6F7R2W380F3ED$4RFolo 50TG6X₂YiY&7H14 227 26 22U*8DIIFBJvalue than there is a meanFO(19K)OOPvalue.

Answered: Image /qna-images/answer/458efe0d-aef5-471f-a5ac-9218c281eaba.jpg

Answered: . 8. 9. Given are five observations for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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When finding the upper bound, UU, of a confidence interval given the lower bound, LL, and the margin of error, EE, we use the formula U=L+2EU=L+2E. Find the upper bound for the proportion of babies that are born preterm if the lower bound is L=0.364L=0.364 and the margin of error is E=0.176E=0.176. Round your answer to 3 decimal places.U=
4
7.2.7-T Question Help Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value t/2, (b) find the critical value z,12, or (c) 40- state that neither the normal distribution nor the t distribution applies. 30- The confidence level is 90%, o= 4084 thousand dollars, and the histogram of 55 player salaries (in thousands of dollars) of football players on a team is as shown. 20어 10- 0- 4000 8000 12000 16000 20000 Salary (thousands of dollars) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. t/2= (Round to two decimal places as needed.) O B. Za/2 = (Round to two decimal places as needed.) C. Neither the normal distribution nor the t distribution applies. kɔuənbə
Q-3) Show all the steps for the problem.
MO21. A particular brand of diet margarine was analyzed to determine the level of polyunsaturated fatty acid (in percentages). A sample of six packages resulted in the following data: 12.8, 14.3, 11.1, 16, 13.5, 12. Calculate the 99% confidence interval on the population mean but input only the value of the upper limit of the Cl in the blank provided up to 2 decimal places. Provide all the necessary solutions in the submission for both upper and lower limit. 10 Upper limit of the Cl is Blank 1. Blank 1 Add your answer
10.Past studies showed that maternal diabetes results in obesity, blood pressure,and glucose tolerance complications in the offspring. Following are thearterial blood pressures, in millimetres of mercury (mm Hg), for a randomsample of 16 children of diabetic mothers. The sample mean is ?̅= 85.99 mm Hg and the sample standard deviation is ? = 8.08 mm Hg (a)Obtain a 95% confidence interval for the mean arterial blood pressure of all children of diabetic mothers. (b)Interpret the confidence interval obtained in part (a). (c)Obtain a 90% confidence interval for the mean arterial blood pressure of all children of diabetic mothers.
Solve Question 2 Please show work
Q3. A business man want to decide about the hair-cut prices and so he decided to know the mean time spet on hair-cuts. He has no record of time needed for hair-cut. He wanted a max error of +0.2. He took a sample of size 30 and found that s= 1.5 min. Find the sample size needed to achieve the 95% confidence level.
Suppose the 90% confidence interval for the mean SAT scores of applicants at a business college is given by [1,691, 1,838]. This confidence interval uses the sample mean and the sample standard deviation based on 25 observations. Use t value 1.711 in your calculations. [You may find it useful to reference the t table.] What are the sample mean and the sample standard deviation used when computing the interval? (Round final answers to 2 decimal places.) sample mean = 1,764.50 sample standard deviation=??? ANSWER IS NOT 358.95
6.2.3 Find the critical value t, for the confidence level c=0.80 and sample size n= 12. tents Click the icon to view the t-distribution table. Resources t.=(Round to the nearest thousandth as needed.)
5

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