SampleNo234567Total8(X)1815192117201912924SampleNo123456Total8X²3242253614412894003612401576(XY)3783003804203233603422503576(Y)2120202019181813624(XZ)13501020152016809521700153997611176y²441400400400361324324265057620521740228025622108Line 1: Y = a₁ + b₁XLine 2: Y = a2 + b₂ZLine 3: Y a3 + b3WLine 4: X = a4 + b4ZLine 5: Was + b5ZLine 6: X = α6 + b6W(Z)Questions* 275(XW) (YZ)15751360160016001064236015302299145815401 101874176117668808056858152549NZ²5625462464006400313672256561399712401(YW)23942320240024402356(W)114116120122124118121835174(ZW)855078889600976069442124100302178980116212 6257341768526W²1299613456144001488415376139241464199677302761) Obtain all regression lines and determine which regression line is the best for sample 3.2) Compare regression line 1, 2 and 3 according to their R² values. Which regression linehas the highest R² values?

Sample NoXYZW11821751142152068116319208012042120801225171956124620188511871918811218242449174

Answered: Sample (X) No 1 2 3 4 5 6 7 Total 8 18…

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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In a random sample of 100 audited estate tax returns, it was determined that the mean amount of additional tax owed was $3464 with a standard deviation of $2569. Construct and interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Click the icon to view the t-distribution table. The lower bound is $ (Round to the nearest dollar as needed.) The upper bound is $ (Round to the nearest dollar as needed.) Interpret a 90% confidence interval for the mean additional amount of tax owed for estate tax returns. Choose the correct answer below. A. One can be 90% confident that the mean additional tax owed is less than the lower bound. B. One can be 90% confident that the mean additional tax owed is between the lower and upper bounds. C. One can be 90% confident that the mean additional tax owed is greater than the upper bound.
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C8. GSS 2018 respondents were asked their views on teens (between the ages of 14 and 16) engaging in sex before marriage (TEENSEX). Responses are cross-tabulated by educational attainment (DEGREE). a. What percentage of those surveyed felt teen sex was always wrong? b. What percentage of those with less than a high school diploma felt teen sex was always wrong? c. What percentage of those with a graduate degree felt teen sex was always wrong? d. Interpret the gamma statistic. e. Using chi-square, test the null hypothesis that DEGREE and TEENSEX are statistically independent. Set alpha at .05. Sex before marriage - - teens 14-16 * Rs highest degree Crosstabulation Rs highest degree Lt high High Junior school school college Bachelor Graduate Total 78 305 47 95 54 579 Sex before Always Count marriage -- teens 14-16 wrong 65.5% 59.8% 58.8% 53.1% 49.1% 58.0% % within Rs highest degree (Continued)
Input -2 -1 0 1 2 3 Input -2 -1 0723 1 0.5 0.33 Output 4 1 0 1 4 9 Input Output -2 -1 - 0 1 1 0 1 4 9 Input -2 -1 0 1 2 M Output -0.5 -1 0 1 2 3 Input -2 -1 1 0 1 2 3 Output -2 -1 0 1 2 3 3 Input Output -2 -8 -1 -1 laulm 2 0 1 8 27 Output 2 1 0 1 2 a. b. C. d. e. f. MyPath Home 3 2 + -5-4-3-2-1 -5 -5-4-3-2-1 -5-4-3-2-1 -5-4-3-2 -4-3-2 4 -2- -3 4 4- 3- 2 1 A 5- 4- 3 2 F -2 3 4 - + -2 -3- -4- $ + -2- 4 -5 5+ 4 3 2 + + 2 5+ $ 4 3 2- 1 12 3 4 5 a 1 2 3 2 3 4 4 q Cengage Pearson-Ma
What is the median
Consider the data set (6, - 2, 7, 5, 7, 1. 7, -3, -5). (a) Find the first quartile. (b) Find the third quartile. (c) Consider the data set (6, - 2, 7, 5, 7. 1, 7, - 3, - 5, - 7} obtained by adding one more data point to the original data set. Find the first and third quartiles of this data set (a) The first quartile is.
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Here under the table which contain the mathematic degrees of 150 pupils: Mathematic | 10-19 [ 20-29 [30- | 40-49[50- [60- |70-79[80-89|90-99| degree 39 59 |69 Pupils (f) 1 6 9 31 42 32 17 10 2 Find the next: 1 Math Mean, Harmonic Mean, Geometric Mean, Mode and Median. 2. Draw Histogram, Polygon, curve, relative, ascending cumulative and descending cumulative. 3 Empirical relationship between mean, mode and median
54 14 18 35 13 92 23 22 60 15 22 41 14 91 28 12 55 38 38 50 18 89 35 13 70 23 22 37 37 75 29 7 73 27 18 40 44 77 13 11 74 23 22 42 16 40 27 21 86 28 21 13 11 78 28 28 94 19 10 47 16 84 42 33 99 26 12 14 12 98 29 31 80 14 8 50 3 96 30 29 Determine the number of classes for this data Establish the class widths Establish the class boundaries Establish the frequency distribution for this data
4. The number of watermelons collected daily in an orchard for the past 50 days are as follow: Number of watermelons 120- 125- 130- 135- 140- 145- collected daily 124 144 149 Number of days 1 26 13 2 Find the mean number of watermelons collected in this orchard daily. (answer: i = 137.6)

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