Suppose that a technology task force is being formed to study technology awareness among instructors.Assume that ten people will be randomly chosen to be on the committee from a group of 28 volunteers,20 who are technically proficient and eight who are not. We are interested in the number on thecommittee who are not technically proficient.a. In words, define the random variable X.b. List the values that X may take on.c. How many instructors do you expect on the committee who are not technically proficient?d. Find the probability that at least five on the committee are not technically proficient.e. Find the probability that at most three on the committee are not technically proficient.

Answered: Suppose that a technology task force is…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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According to a study, 64% of students prefer in-class exams to online exams. Suppose that 16 students are randomly selected. How likely is it that at least 8 of these students prefer in-class exams to online exams? Round to four decimal places. A. .9209 B. .8187 C. .1813 D. .0791
A random sample of 100 women is selected and their average salary is $65,123. What conclusion can you make?
After once again losing a hockey game to the Michigan Tech,the alumini association of NMU conducted a survey to see if alumini were in favour of firing the coach.A simple random sample of 100 alumini from the population of all living alumini was taken .Sixty-four of the alumini in the sample were in favour of firing the coach.Let p represent the proportion of all living alumini who favor firing the coach. what is a 99% confidence interval for p?
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A Statistics instructor wishes to know the average age (in month) of his 200 students. He decides to choose 25 students from the class and ask them for their age. All 200 names are put in a hat and 25 names are then chosen at random (without replacement). The average age of the students chosen is observed to be 231 months. The group of 25 students is known as what?
As part of a statistics project, a teacher brings a bag of marbles containing 700 white marbles and 300 red marbles. She asks her students to determine how many red marbles are in the bag without counting them.A student randomly draws 100 marbles from the bag. Of the 100 marbles, 33 are red.The target population consists of The 100 marbles drawn by the student The 1000 marbles in the bag None of the above The 33 red marbles drawn by the student The 300 red marbles in the bag The sample consists of The 1000 marbles in the bag The 100 marbles drawn by the student The 33 red marbles drawn by the student None of the above The 300 red marbles in the bag Based on the sample, the student would estimate that ------ marbles in the bag were red.
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A small liberal arts college in the Northeast has 350350 freshmen. Seventy of the freshmen are education majors. Suppose fifty freshmen are randomly selected (without replacement). Step 1 of 2: Find the expected number of education majors in the sample. Round your answer to two decimal places, if necessary.
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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