Given are the two sets of data on the science achievement tests of twoLet'sPracticeB.A.Do as indicated.two ssections in grade 10:Section A857576817675907676968988738189747476867475887879 86819089888592928790879394947275Section B908988859292879087937275928674807178908575768176757676968775717872717174747192871. Compare the two sets of scores using the range, mean, and standarddeviation and interpret the results. See Example 1.2. Determine the frequencies for the grouping below for each sectionand determine the percentages for the groupings. Compare the twosections based on the results. See Example 2.Low (74 and below)Average (75-84)High (85 and above)3. Determine the median, the quartiles Q, and Q, and D, from thecombined scores of the two sections. Use the results to comparetwo sections. See Example 3.the

1. Section A : n = 40 Mean = ∑ Xin = 72+73+74+.....94+94+9640 = 83.125 Standard deviation = 7.2083…

Answered: Given are the two sets of data on the…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Can some one explan how to get part B, C, and E right? 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 No. of absences, x 0 1 2 3 4 5 6 1 89 0 Final grade, y 882 85 4 824 79.9 76.9 725 63.1 67.4 64.5 61.6 (a) Find the least-squares regression line treating the number of absences, x, as the explanatory variable and the final grade, y, as the response variable X. 3124 x (88249) (Round to three decimal places as needed) (b) Interpret the slope and y-intercept if appropriate Interpret the slope Select the corect choice belolw and. if necessary. fil in the answer box to complete your choice (Round to three decimal places as needed) L For zero days absent the final score is predicted to be For a final score of zero. the number of days absent is predicted to be days C le d d ta The data below represent the number of days absent, x, and the final grade, y. for a sample of…
The test scores of 40 students are listed below. Find P85. 30 35 43 44 47 48 54 55 56 57 59 62 63 65 66 68 69 69 71 72 72 73 74 76 77 77 78 79 80 81 81 82 83 85 89 92 93 94 97 98
96 98 72 55 78 84 87 92 73 47 32 66 78 94 86 89 90 33 67 92 87 ie above data qualitative data or quantitative data?
Assume that T is a linear transformation. Find the standard matrix of T. T: R² →R² first rotates points through - 3π 4 radians and then reflects points through the horizontal x₁-axis. H A = (Type an integer or simplified fraction for each matrix element. Type exact answers, using radicals as needed.)
Need to double-check and expand on few question. Thanks. The following is the data: sodium calories 1 129 317 2 180 555 3 117 265 4 142 369 5 164 523 6 153 391 7 140 394 8 143 472 9 143 501 10 167 434 11 117 382 12 140 379 13 158 415 14 135 417 15 130 350 16 210 617 17 149 505 18 161 506 19 132 342 20 122 446 21 161 454 22 166 496 23 102 317 24 119 400 25 112 400 26 207 636 27 183 587 28 151 463 29 152 524 30 178 381 31 96 441 32 176 518 33 163 561 34 145 375 35 196 530 36 114 334 37 179 433 38 160 407 39 160 583 40 156 377 41 92 265 42 145 268 43 148 422 44 122 412 45 204 509 46 108 310 47 116 256 48…
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
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: Female: 69 89 55 95 98 67 55 58 61 57 63 56 55 78 61 64 81, 92 86 89 67 85 88 92 74 92 93 79 78 71 Find the means. The mean for males is 67.8 beats per minute and the mean for females is 82.1 beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Find the medians. The median for males is 61 beats per minute and the median for females is 85 beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Compare the results. Choose the correct answer below. OA. The mean is lower for males, but the median is lower for females. OB. The median is lower for males, but the mean is lower for females. O C. The mean and the median for females are both lower than the mean and the median for males. OD. The mean and the…
Use the same scales to construct boxplots for the pulse rates of males and females from the accompanying data sets. Use the boxplots to compare the two data sets. Click the icon to view the data sets. Men's Pulse Rates 62 60 70 70 62 86 82 77 76 74 Full data set 87 53 90 65 69 56 80 61 76 80 53 60 67 63 62 49 70 60 70 56 64 77 67 60 69 73 73 62 50 57 Women's Pulse Rates 78 68 70 70 77 76 98 70 66 78 70 58 74 77 78 92 95 60 100 100 77 64 84 63 72 77 75 90 88 73 83 71 76 103 62 70 70 89 74 80 Choose the graphs that represent (picture attached!!) Compare the two boxplots. Choose the correct answer below. A. In general, it appears that males have higher pulse rates than females. The variation among the male pulse rates is much greater…
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? 86 Male: 73 90 52 57 64 63 55 97 64 95 54 93 61 60 Female: 68 88 93 90 79 65 85 62 91 92 73 90 78 82 75 D C Find the means. The mean for males is beats per minute and the mean for females is beats per minute. (Type integers or decimals rounded to one decimal place as needed.)
Obtain the five number summary for the given data. The test scores of 30 students are listed below. Find the five-number summary. 32 42 45 48 52 55 57 61 62 65 80 81 83 85 85 87 90 94 96 98 Send data to Excel O Min=32, Q, =61, Q,= 70, Q, = 83, Max = 98 Min = 32, Q, = 61, Q, = 72, Q,=83, Max = 98 O Min = 32, Q, = 59, Q, = 72, Q, = 83, Max = 98 O Min = 32, Q, = 59, Q, = 70, Q, = 83, Max = 98 Continue
R-Studio or by hand is fine. Thanks in advance! The following is the data: sodium calories 1 129 317 2 180 555 3 117 265 4 142 369 5 164 523 6 153 391 7 140 394 8 143 472 9 143 501 10 167 434 11 117 382 12 140 379 13 158 415 14 135 417 15 130 350 16 210 617 17 149 505 18 161 506 19 132 342 20 122 446 21 161 454 22 166 496 23 102 317 24 119 400 25 112 400 26 207 636 27 183 587 28 151 463 29 152 524 30 178 381 31 96 441 32 176 518 33 163 561 34 145 375 35 196 530 36 114 334 37 179 433 38 160 407 39 160 583 40 156 377 41 92 265 42 145 268 43 148 422 44 122 412 45 204 509 46 108 310 47 116 256 48 138…
Listed below are pulse rates (beats per minute) from samples of adult males and females. Find the mean and median for each of the two samples and then compare the two sets of results. Does there appear to be a difference? Male: 95 77 64 88 62 72 53 82 56 79 53 53 54 76 55 Female: 65 63 87 89 84 76 87 68 93 88 69 93 82 87 70 Find the means. The mean for males is beats per minute and the mean for females is beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Find the medians. The median for males is beats per minute and the median for females is beats per minute. (Type integers or decimals rounded to one decimal place as needed.) Compare the results. Choose the correct answer below. O A. The mean and the median for males are both lower than the mean and the median for females. O B. The mean and the median for females are both lower than the mean and the median for males. O C. The mean and median appear to be roughly the same for both genders. O D. The…

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