The value of x2 is . Your answer should be aninteger with no decimals.The degrees of freedom is .Check that the p-value is essentially zero from thetable.(True or False) With simple random sampling, it isalmost impossible for a jury to differ this much fromthe county age distribution. The inference is thatgrand juries are not selected at random. Write trueor false. QUESTION 5One study of grand juries in Alameda County,California,comparedthedemographiccharacteristics of jurors with the general population,to see if the jury panels were representative.8 Theresults for age are shown below. The investigatorswanted to know whether these 66 jurors wereselected at random from the population of AlamedaCounty. (Only persons 21 and over are considered;the county age distribution is known from PublicHealth Department data.)Fill out the last column below. All of your answershould be accurate to the tenth digit, for example 4.8.County-wide numberpercentage jurorsfехpectedofnumberAgeofjurors21 to 404241 to 5023LO

We know, Value of chi square = summation of (O-E) ^2 /E Degree of freedom = no. Of groups - 1

Answered: The value of x2 is . Your answer should…

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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Race organizers want to survey the participating runners on the quality of the running course. Which of the following uses systematic random sampling? Select the first 15 finishers and the last 15 finishers to take the survey. Randomly select 15% of the male participants and 15% of the female participants. Select the 5th finisher (with the number 5 being randomly chosen) to survey, then survey every 15th finisher after that. Sort all of the runners' names alphabetically, then randomly choose 2 letters and survey all participants whose last name begins with one of those letters.
A population includes elements A, B, C, D, E. Samples are taken 2 elements at a time. What is the value of N? And what is the value of n? Answer using whole number.
Suppose a poll was to be conducted in an elementary school by interviewing a representative sample of 50 students. The interviewer sat outside the cafeteria when it opened and talked to the first 50 students. 1. Would this be a representative sample of the elementary school. Support your answer (tell why). 2a. Describe (who is) the population of interest. 2b. Describe (who is) the sample.
A particular part that is used as an injection device is sold in lots of 10. The producer deems a lot acceptable if no more than one defective is in the lot. A sampling plan involves random sampling and testing 3 of the parts out of 10. If none of the 3 is defective, the lot is accepted. Comment on the utility of this plan. Determine the correct Excel formula. a. HYPGEOM.DIST(0,2,3,10, FALSE) O b. NONE O c. HYPGEOM.DIST(2,0,10,3, FALSE) O d. HYPGEOM.DIST(0,2,3,10, TRUE)
The CEO of a large electric utility claims that at least 80 percent of his one million customers are very satisfied with the service they receive. A local newspaper surveyed 300 customers randomly. 73 percent said they were very satisfied. The test statistic is (Round answer to two decimal places. Do not write 0.12 as .12.)
There are 160 questions on a test, and they are all multiple choice questions with four possible answers. For each question, only one answer is correct. Find the mean number of correct answers for someone who make random guesses for all of the questions.
To collect data about the number of students in your high school who have a part time job, which of the following methods is most likely to lead to a sample that is the most representative of the students in your school? Interview all the girls in the school. Ask the principal. Interview all the students in 9th grade. Assign each student in the school a number and randomly select students to be interviewed. Interview all the students who are on the sports teams in the school.
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To earn full credit for this question, use your own sheet of paper to solve the problem, showing all steps of your work. The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. 17, 20, 23, 27, 35, 29, 33, 35 Find the 5-number summary, check for any outliers using fences, and create a boxplot. Use the space below to type your answers AND/OR to upload a picture of your work for all the questions in this problem. To upload a picture of your work, use a cellphone camera or a free scanning app (such as Adobe Scan, Simple Scanner, Tiny Scan, ..), download the picture or document to your own computer via email, and attach your document using the "attach file" sign (paper clip symbol) on the menu bar below. Please do not use "insert/edit image" (picture sign) to upload your file. Edit Insert - Formats - I U x,
Fortune publishes data on sales, profits, assets, stockholders' equity, market value, and earnings per share for the 500 largest U.S. industrial corporations every year. Assume that you want to select a simple random sample of 10 corporations from the Fortune 500 list. Use the last three digits in column 10 of the table of random numbers, beginning with 945. Read down the column and identify the numbers of the 10 corporations that would be selected. (Enter your answers as a comma-separated list.)

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