Required informationAn insurance company offers a discount to homeowners who install smoke detectors in their homes. A companyrepresentative claims that 81% or more of policyholders have smoke detectors. You draw a random sample of eightpolicyholders. Let X be the number of policyholders in the sample who have smoke detectors.If exactly 81% of the policyholders have smoke detectors (so the representative's claim is true, but just barely), what is P(X≤ 1)?P(X≤ 1) is 0.000059 x10-5

Let X be the random variable from binomial distribution with probability (p) = 81% = 0.81 and sample…

Answered: Required information An insurance…

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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5
Suppose that an examination was hard and most students received extremely low grade on it. This is an example of _______.
A B C
e Chrome nework.aspx?homeworkId=633611865&questionId=1&flushed=false&cid=7113119¢erwin=yes Use the Venn diagram to represent set A in roster form. A = {} (Use a comma to separate answers as needed.) .. Kyle Lyons 09/03/22 12:28 AM HW Score: 0%, 0 of 12 points Points: 0 of 1 U 1 4 A 9 12 B 14 18 21 {0} Save 22 27
Assume that two dependent samples have been randomly selected from normally distributed populations. A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course. The results are given below. Before 74 80 72 80 80 67 93 85 91 77 After 73 80 70 83 78 68 90 82 87 75 Provide a 90% CI on the difference. Round your answers to 3 decimals. Provide negative signs when appropriate. Use leading zeros for values less than 1. Lower Limit: Upper Limit: Based on the results of your CI, what is the conclusion to a two-tailed hypothesis test at alpha = .10? Reject Ho / Do Not Reject Ho Do the results suggest there is a difference in means at alpha = .10? Yes / No
Which of the following ensures a sample is representative of its population? The sample is convenient. The sample has properties that are matched to those in the population. The sample is the same size as the population. The sample is unique.
Find the mean, median, and mode.
Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample. Find the values of d overbar and s Subscript d. d overbar___ (Type an integer or a decimal. Do not round.) s Subscript d. (Round to 2 decimal places as needed.) In general, what does mu Subscript d represent?
Consider ratings of 4 “Agree” or 5 “Strongly Agree” to mean that test takers have obtained a “high” score on a BRS item. Ratings of 1-3 would be considered “low” item scores. Compute the item discrimination index (d) for BRS Item 3. Enter the values below that you obtain from Excel: Total # of test takers N = _______ 25% of the total # of test takers, or # in the Upper 25% group U = _______ # of test takers in the Upper 25% group for BRS total scores who scored high on item 3 = _______ # of test takers in the Lower 25% group for BRS total scores who scored high on item 3 = _______ Item discrimination index d = ________ ID # Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 BRS Total Score 25 5 5 5 5 5 5 55 24 5 5 2 4 5 5 50 21 5 4 5 3 5 5 48 22 5 5 4 3 3 4 46 23 5 3 3 5 5 2 46 18 4 5 5 4 4 4 44 20 5 5 4 3 3 4 44 16 5 4 5 5 4 3 42 19 4 5 4 1…
3.4 and 3.4 only
The graph portrays the decision criterion for a hypothesis test for a population mean. The null hypothesis is H:H=Po: The curve Is the normal curve for the test statistic under the assumption that the null hypothesis is true. Use the graph to solve the problem. A graphical display of the decision criterion follows. 0.9- Do not reject H. Reject H, 0.8- 0.7 -0.6- 0.5- 034 10.005 413 3542s s 8 o59 03 1.is 17 136 2.576 Determine the rejection reglon. Submit Assignment Continue 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy Accessibility

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