A sample of rental cars showed the following annual mileage (in thousands of miles) 46.76834.81369.19436.92757.66636.00342.96137.19447.75041.73844.23934.05231.73154.66130.92847.84731.28638.81340.16632.90542.05749.83447.55637.72922.12040.82241.10462.39932.55043.558 11The variance of the mileage data is,a99.842 b97.885 c95.965 d94.084

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Answered: sample of rental cars showed the…

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 following data show the weights (in pounds) of 20 students in a class. Find the median. 149.23 115.00 143.40 124.67 123.45 124.67 136.05 139.17 121.60 130.59 128.72 151.41 115.00 136.64 111.11 110.80 120.22 150.89 118.18 124.67
A sample of birth weights of 23 girls was taken. Below are the results (in g): 2343.1 3651.5 3043 2570.9 2555 2727.1 2985 2601.5 3772.8 3151.5 2773.3 2702.6 | 2776.9 3436.8 3028.4 3447.5 1838 3356.9 3405 3057.1 3405.5 3926.3 2426.7 * = 2999.2g s = 507.72 g Use a 10% significance level to test the claim that the standard deviation of birth weights of girls is different from the standard deviation of birth weights of boys, which is 550 g. Round all answers to 3 decimal places if possible.
Below are the income per capita of a sample of different households. Per Capita Income 21,500 37,325 25,049 18,998 24,122 23,615 25,771 25,922 21,551 24,447 21,708 25,028 23,152 25,106 21,385 20,247 25,239 21,096 20,393 26,210 23,002 24,786 21,056 24,217 27,579 21,080 30,023 27,360 24,775 27,489 28,821 28,976 32,902 29,219 26,889 28,066 37,700 24,302 25,979 33,953 26,924 19,373 29,932 24,007 27,667 20,008 21,387 25,184 Determine each of the following measures for the sample of income by using the appropriate Excel function. Place your answers in the highlighted cells. (a) mean (b) median (c) variance (d) standard deviation
A sample of 21 cities were selected from around the continental United States. The prices of whole milk (in units of dollars per gallon) in these cities are seen below. 2.52 2.92 4.64 3.39 3.47 2.96 3.52 4.16 2.70 3.59 4.84 3.55 4.12 4.25 3.99 3.02 2.86 3.84 3.42 3.55 4.02 Calculate the mean milk cost in these cities. Round to the nearest cent. What is the median milk cost in these cities? Determine the first quartile Q1 for this set of data. Determine the third quartile Q3 for this set of data. Calculate the interquartile range (IQR) for these milk prices. Express your answer to the nearest cent. Do not include a dollar sign in your answer. Calculate the standard deviation for these milk prices.
The data below shows the SAT scores of 30 students at Martin Luther King High School in Florida. 1561 1554 1536 1531 1523 1518 1515 1511 1506 1500 1499 1493 1490 1489 1485 1482 1482 1479 1477 1466 1453 1448 1439 1432 1423 1421 1413 1407 1394 1388 a. Test the hypothesis that mean is less than 1500. Use the 1% level of significance. b. Would your conlcusion change at the 10% level of significance? Show all steps
A sample of rental cars showed the following annual mileage (in thousands of miles) 46.768 34.813 69.194 36.927 57.666 36.003 42.961 37.194 47.750 41.738 44.239 34.052 31.731 54.661 30.928 47.847 31.286 38.813 40.166 32.905 42.057 49.834 47.556 37.729 22.120 40.822 41.104 62.399 32.550 43.558 8 The sum of x is, a 1147.569 b 1183.061 c 1219.650 d 1257.371
Calculate the median of the following distribution. Annual Sales Frequency Annual Sales Frequency 000) Less than 10 '000) Less than 40 4 55 20 20 50 62 30 35 60 67 Is it possible to calculate the arithmetic mean ? If possible, calculate it. Hence obtain an estimate of mode.
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46.768	34.813	69.194	36.927	57.666	36.003
42.961	37.194	47.750	41.738	44.239	34.052
31.731	54.661	30.928	47.847	31.286	38.813
40.166	32.905	42.057	49.834	47.556	37.729
22.120	40.822	41.104	62.399	32.550	43.558

11	The variance of the mileage data is,
a	99.842
b	97.885
c	95.965
d	94.084