A book store must order books two months before each semester ends. The manager believesthat the number of books that will be sold for any particular course is related to the number ofstudents registered for the course when the books are ordered. The data below show the pastrecords of the bookstore.SEMESTERNUMBER OF1011124812362835393030313836382926STUDENTSREGISTEREDNUMBER OF 312934352930303834332926BOOKSSOLDPredict the number of books that would be sold in a semester if:(a) 33 students(b) 25 students; and(C) 40 students are registered in a particular course

Given data: X 36 28 35 39 30 30 31 38 36 38 29 26 Y 31 29 34 35 29 30 30 38 34 33 29 26…

Answered: A book store must order books two…

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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please give me the correct answer for the last one specifically even after comfirming my answers for the others:
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Several years ago, two companies merged. One of the concerns after the merger was the increasing burden of retirement expenditures. An effort was made to encourage employees to participate in the 401(k) accounts. Nationwide, 62% of eligible workers participated in these accounts. The accompanying data table contains responses of 30 employees of the company when asked if they were currently participating in a 401(k) account. Complete parts a through d. Click the icon to view the data table. a. Determine the sample proportion of company workers who participate in 401(k) accounts. The sample proportion is (Round to three decimal places as needed.) b. Determine the sampling error if in reality the company workers have the same proportion of participants in 401(k) accounts as does the rest of the nation. The error is. (Round to three decimal places as needed.) c. Determine the probability that a sample proportion at least as large as that obtained in the sample would be obtained if the…
a. Find the absolute and relative change for the number of refugee arrivals into the US from 2011to 2017. Interpret these numbers in asentence. Number of refugee arrivals vach year into the U.S. 150 thousand 97 100 50 28 1982 1990 2000 2010 2017* Global refugee population 20 million 17.2 m 15 10.2 m 10 ..... 1982 1990 2000 2010 2017*
Please answer all parts.
The following tables list the ages of female and male actors when they starred in their award-winning Best Actor performances. (A graphing calculator is recommended.) Ages of Best Female Actor Award Recipients 51 53 65 54 51 75 56 59 61 73 71 31 47 45 41 37 65 70 60 47 31 76 55 65 42 25 69 78 78 53 27 41 41 29 Ages of Best Male Actor Award Recipients 50 59 64 72 71 76 73 43 32 32 43 34 64 47 45 31 46 48 57 57 59 66 64 68 64 61 30 71 55 43 74 65 73 69 (a) Find the mean and the sample standard deviation of the ages of the female recipients. Round each result to the nearest tenth. mean yr sample standard deviation yr (b) Find the mean and the sample standard deviation of the ages of the male recipients. Round each result to the nearest tenth. mean yr sample standard deviation yr (c) Which of the two data sets has the larger mean? female actors male…
Is fishing better from a boat or from the shore? Pyramid Lake is located on the Paiute Indian Nation in Nevada. President, movie stars, and people who just want to catch fish go to Pyramid Lake for really large cutthroat trout. Let row B represent hours per fish caught fishing from the shore and let row A represent hours per fish caught using a boat. The following data re paired by month from October through April. Oct. Nov. Dec. Jan. Feb. Mar. Apr. B: Shore 1.6 1.8 2.0 3.2 3.9 3.6 3.3 A: Boat 1.5 1.4 1.6 2.2 3.3 3.0 3.8 Use a 1% level of significance to test if there is a difference in the population mean hours per fish caught using a boat compared with fishing from the shore.
The table lists the number of members at a local gym for selected years, where year 11 represents 20022002, year 33 represents 20042004, and so on. Year x y=number of membersy=number of members 20022002 11 4040 20042004 33 5050 20062006 55 6666 20082008 77 8888 20102010 99 9696 Use the ordered pairs (5,66)(5,66) and (7,88)(7,88) to find the equation of a line that approximates the data. Express your answer in slope-intercept form. (If necessary, round the slope to the nearest hundredth and the y-intercept to the nearest whole number.)
Imagine that you were hired as a consultant by a local business owner tohelp her determine how many paid days off she should provide to her employees. In general, she wants to establish some sort of standard for her employees and for herself. Based on data provided by the government, you conclude that on average, workers in the United States take 14 paid days off per year. The data for the eight employees who work at the company you are consulting for are: 12, 9, 7, 12, 13, 14, 14, and 12 days. Thequestion you are trying to answer is, are the number of days off taken by the eight employees statistically different from the data provided by the US government? (I have stated the null and alternative hypotheses, and found that this is a two-tailed test. With alpha=0.05, I have found the t-critical value to be +/- 2.365, with DF=7)I need help with: A. Compute the appropriate test statistic. Use the computational formula tocompute the sample standard deviation. Show all formulas that you…
Please refer to the picture attached.
Answer this question in R. Show as much of your work as possible.
The age of a patient at the time of diagnosis of colon cancer was tracked—50 males and 50 females. The ages are: M: 91 87 87 85 83 81 80 79 78 77 75 75 74 73 72 72 71 71 70 69 69 68 66 66 65 63 63 63 62 62 62 61 61 61 60 60 59 59 57 56 55 55 53 53 51 48 45 39 38 29 F: 94 93 92 90 89 88 87 86 86 85 85 83 81 79 79 78 77 77 76 76 76 76 75 74 74 73 72 72 71 70 68 68 67 66 66 65 65 65, 64 64 64 63 60 59 58 55 54 53 51 48 Calculate the value for: (1) 85th percentile for the combined ages. (2) Percentile for an age of 60 for females.__________th(3) Percentile for an age of 75 for males.______________th

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