The following table presents the mean cost of a hospital stay, in $1000s, and the number ofhospital stays, in millions, in the United States for each of 15 years.CostNumber9.834.310.334.110.334.210.634.211.334.711.834.912.535.513.736.415.017.337.237.819.738.220.538.722.339.224.039.526.139.5Compute the least-squares line for predicting the number of stays (y) from the cost (x).b. Compute the coefficient of determination r?.Construct a residual plot. Does the relationship appear to be linear?True or false: If the coefficient of determination is large, the relationship must belinear.a.C.d.

Data and calculation for regression equation is shown below Cost(x) Number(y) x2 y2 xy…

Answered: The following table presents the mean…

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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The data below represent the number of days absent, x, and the final grade, y, for a sample of college students at a large university. Complete parts (a) through (e) below. У, No. of absences, x 1 2 4 6. 7 8 9. Final grade, y 88.8 85.9 83.0 80.6 77.7 73.3 63.5 68.3 65.4 62.6 (Round to three decimal places as needed.) A. For every unit change in the final grade, the number of days absent falls by days, on average. B. For every day absent, the final grade falls by on average. C. For zero days absent, the final score is predicted to be 88.778 . D. For a final score of zero, the number of days absent is predicted to be days. E. It is not appropriate to interpret the y-intercept. (c) Predict the final grade for a student who misses five class periods and compute the residual. Is the observed final grade above or below average for this number of absences? The predicted final grade is |. This observation has a residual of, which indicates that the final grade is average. (Round to one decimal…
From the data given below, using the simple average of price relative comput: (i) Index number for 1998 with 1995 as the base and (ii) Index number for 1995 with 1998 as the base. Comment upon the result, if any. Price Items Unit 1995 1998 6. Rice Dal Ghee kg kg kg 15 20 40 50
Calculate my average exam 1=35 exam 2= 47 exam 3=67 exam 4= 80.625 homework 1b = 95.14 homework 2a= 98.42 homework 2b= 98.36 homework 3a = 97.15 homework 3b= 97.94 homework 4a= 99.49 homework 4b = 97.54 homework 5a= 92.35 homework 5b=92.80 homework 6= 95.71 homework 7a = 94.70 homework 7b = 94.84 homework 8a = 84.86 homework 8b = 94.02 homework 9a= 79.06 Achieve practice 1a= 100 achieve practice 1b= 100 achieve practice 2a =100 achieve practice 2b= 100 achieve practice 3a =100 achieve 3b = 100 achieve practice 4a= 100 achieve practice 5a= 100 achieve practice 5b = 100 achieve practice 6 = 100 achieve practice 7a = 100 achieve practice 7b = 100 achieve practice 8a= 100 achieve practice 8b = 100 achieve practice 9a= 100 achieve practice 9b = 0 recitation= 93
Below is a histogram of the current prices of different varieties of face masks, with a skewness of measure of -1.380. Based on your knowledge of graph shape, approximate the mean (average) cost of a box of masks. Count 15 10 5 0 T 20 37$ per box of 24 $8 per box of 24 49$ per box of 24 24$ per box of 24 Current price of a box of 24 facemasks 25 30 Price 35 40 45
Referring to Table 2, the mean square for the factor filling time is____ 1). 0.9030 2). 0.4234 3). 0.4515 4). 0.2117
From the following data relating to average prices of certain commodities
Ef 30.
The following table shows a sample of room rates for a 100 room resort hotel in Nova Scotia for the time period Jan. 1 to Dec. 2003. Note that 1/1-7/3 means January 1 to March 7, 2003. Be sure to scroll down to see the bottom of the rate table. 2003 Room Rates A Oceanfront 1 double bed Oceanfront 2 double beds Oceanfront Effic, 2 double beds 2 room suite 3 double beds Oceanfront Suite 3 double beds Extra Person B C D E 1/1 - 7/3 75 85 105 120 140 5 8/3 30/3 125 135 155 175 200 8 31/3 - 31/5 85 115 130 150 5 1/6 -30/6 100 110 130 150 175 5 1/7 2/9 -1/9 -8/10 150 95 180 200 225 10 105 125 140 165 7 9/10 -1/12 85 95 115 130 5 2/12 -20/12 75 85 105 120 140 5 21/12 - 31/12 125 135 155 175 200 10 IMPORTANT: Please omit the dollar signs in all answers. Note: Suites have 3 beds. a. For the 9 time periods, what was the mean extra person rate? b. (i) This hotel has 20 type A rooms, 15 type B, 30 type C, 25 type D and the remainder are type E. If the hotel was fully booked (with no extra people…
kln 2.18 The report "Trends in Education 2010: Community Colleges" (www.collegeboard.com/trends) included the accompanying information on student debt for students graduating with an AA degree from a public community college in 2008. Debt Relative Frequency None 0.62 Less than $10,000 0.23 Between $10,000 and $20,000 0.10 More than $20,000 0.05 a. Use the given information to construct a bar chart. b. Comment on student debt for public community college graduates.
your car is more crowded than you think. table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.

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