Normal Distribution. The lifetime of a certain typeof automobile tire (in thousands of miles) isnormally distributed with mu = 42 and sigma = 4.5.%3D%3DSuppose the manufacturer put a warranty valueon their product of 36 thousand miles. What isthe probability that they would have to pay awarranty cost for a randomly chosen tire? Forthis problem we want just the answer. Please giveup to 4 significant decimal places, and use theproper rules of rounding.

The question is about normal dist. Given : Popl. mean lifetime of tire ( μ ) = 42 Popl. std.…

Answered: Normal Distribution. The lifetime of a…

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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To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 4.0 in a 5 credit Math course 2.5 in a 3 credit Music course 2.7 in a 5 credit Chemistry course 3.3 in a 6 credit Journalism course What is the student's GPA for that term? Round to two decimal places Student's GPA =
Illustration 19.34. A persón buys 100 electric tubes each of two well-known makes, taken at random from the stocks for testing pur- pose. He finds that make A has a mean life of 1300 hrs with SD=82 hrs, and make B has a mean life of 1248 hrs with SD=93 hrs. Dis- cuss the significance of these results.
For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. Santa Fe black-on-white is a type of pottery commonly found at archaeological excavations at a certain monument. At one excavation site a sample of 602 potsherds was found, of which 370 were identified as Santa Fe black-on-white. (a) Let p represent the proportion of Santa Fe black-on-white potsherds at the excavation site. Find a point estimate for p. (Round your answer to four decimal places.) (b) Find a 95% confidence interval for p. (Round your answers to three decimal places.) lower limit upper limit Give a brief statement of the meaning of the confidence interval. 95% of all confidence intervals would include the true proportion of potsherds. 5% of all confidence intervals would include the true proportion of potsherds. 95% of the confidence intervals created using this method would include the true proportion of potsherds. 5% of the confidence intervals…
2.2 7. pls help
Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15. Click to view page 1 of the table, Click to view page 2 of the table. Step 1 теan(u) s tan dard o 90 115 The area of the shaded region is (Round to four decimal places as needed.) Step 2 Required pr X-µ = P = P (Z < 1 = P (Z < 2 = 0.9773 Enter your answer in the answer box and then click Check Answer. %3D All parts showing Clear All Final Check P Type here to search hp
Calculate the Standard Score of the given x value. X=91, where N=84,5 and 0 = 79.7 Round your Cinswer to two elecimal places
21 d-f
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OL th.. Frequency 8 9 0 T 10 20 30 40 LEAD 50 60 70 80 Data were collected on the lead levels of children of battery factory workers. The data are displayed in the histogram above. Choose the correct answer. The maximum lead level is less than 60 The median lead level (the level that exactly half the children exceed) is less than 30 There are 33 children in the data set. None of the other answers is true
Find the value of t for the t distribution for the following. Area in the right tail = 0.05 and df =12 Round your answer to 3 decimal places. T=
Question 12 A variable is normally distributed with mean 22 and standard deviation 7. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 22. b) Find the area to the left of 20. c) Find the area to the right of 21. d) Find the area to the right of 23. e) Find the area between 20 and 29. Question Help: D Post to forum Calculator Submit Question
Suppose the lengths of human pregnancies are normally distributed with µ = 266 days and o= 16 days. Complete parts (a) and (b) below. (Type integers or decimals.) A. The proportion of human pregnancies that last less than B. The proportion of human pregnancies that last more than days is days is Provide a second interpretation of the area using the given values. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or decimals.) O A. The probability that a randomly selected human pregnancy lasts less than B. The probability that a randomly selected human pregnancy lasts more than (b) The figure to the right represents the normal curve with µ = 266 days and o = 16 days. The area between x = 280 and x = 295 is 0.1558. Provide two interpretations of this area. days is days is Provide one interpretation of the area using the given values. Select the correct choice below and fill in the answer boxes to complete your choice. (Type integers or…

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