Consider the following data about the annual sales ($000's) of 50 employees (sorted in ascending order). What is the 75th percentile ofannual sales?274387530580635295400535583663300403540585670305405541586671313420542600688316424546604694340460552607710351481556611716382499559627724385528575633738

Answered: Consider the following data about 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 table below contains real data for the first two decades of AIDS reporting. Year # AIDS cases diagnosed # AIDS deaths Pre–1981 91 29 1981 319 121 1982 1,170 453 1983 3,076 1,482 1984 6,240 3,466 1985 11,776 6,878 1986 19,032 11,987 1987 28,564 16,162 1988 35,447 20,868 1989 42,674 27,591 1990 48,634 31,335 1991 59,660 36,560 1992 78,530 41,055 1993 78,834 44,730 1994 71,874 49,095 1995 68,505 49,456 1996 59,347 38,510 1997 47,149 20,736 1998 38,393 19,005 1999 25,174 18,454 2000 25,522 17,347 2001 25,643 17,402 2002 26,464 16,371 Total 802,118 489,093 Graph "year" vs. "# AIDS deaths." Do not include pre-1981. Label both axes with words. Scale both axes. Calculate the following. (Round your answers to the nearest whole number. Round the correlation coefficient r to four decimal places.) (a) a = (b) b = (c) r = (d) n =
The data below shows car model and the color of vehicles sold at a Car dealership.Hyundai Honda Toyota Daihatsu Subaru TotalRed 2015.40118.648613.518*54.5950Black 1516.9569.511814.8698.6275.0555White 2224.651513.842621.621212.5457.35**Total 57 32 50 29 17 185Chi Sq =1.37 + 0.64 + 4.18 + 0.00 + 0.04 +0.22 + 1.30 + *** + 0.02 + 0.75 +0.28 + 0.10 + 0.89 + 0.02 + 0.75 = 10.47DF = ****, P-Value = *****No cells with expected counts less than 5a) Carefully define the null and alternative hypotheses of the χ2 test underlying thegeneration of the above table.b) Fill in the missing values ‘*’, ‘**’, ‘***’, ‘****’ and ‘*****’.c) What is the conclusion of this test at the 5% level of significance? Give reasons for youranswer.d) Name two limitations of this test.
Consider the following data:Monthly Profit of a Gym Month Jan-12 Feb-12 Mar-12 Apr-12 May-12 Jun-12 Jul-12 Aug-12 Sep-12 Profit ($) 5,9015,901 5,6535,653 5,1545,154 4,8774,877 5,2455,245 5,7985,798 6,9196,919 6,2346,234 5,9585,958 Step 1 of 5 : Determine the three-period moving average for the next time period. If necessary, round your answer to one decimal place.
Find the 94th percentile, P94, from the following data 3 10 12 14 16 17 29 30 31 33 36 39 45 48 51 52 54 56 58 60 61 66 67 68 70 71 72 75 77 78 79 84 85 88 94 98 99 100 P94 =
A company's price/earnings (P/E) ratio is the company's current stock price divided by the latest 12 months' earnings per share. Suppose the following table shows the P/E ratios for a sample of 10 Japanese companies and 12 U.S. companies. Japan United States P/E Ratio P/E Ratio 155 12 26 23 18 23 127 45 36 21 215 13 63 26 664 13 35 26 68 38 17 13 Is the difference between the P/E ratios for the two countries significant? Use the MWW test and a = 0.01 to support your conclusion. State the null and alternative hypotheses. H: Median for Japanese companies - Median for U.S. companies 20 H: Median for Japanese companies - Median for U.S. companies 0 H₂: Median for Japanese companies - Median for U.S. companies = 0 ⒸH: Median for Japanese companies - Median for U.S. companies ≤ 0 H₂: Median for Japanese companies - Median for U.S. companies > 0 OH: The two populations of P/E ratios are not identical. H: The two populations of P/E ratios are identical. ⒸH: The two populations of P/E ratios…
The table below contains real data for the first two decades of AIDS reporting. Year # AIDS cases diagnosed # AIDS deaths Pre-1981 91 29 1981 319 121 1982 1,170 453 1983 3,076 1,482 1984 6,240 3,466 1985 11,776 6,878 1986 19,032 11,987 1987 28,564 16,162 1988 35,447 20,868 1989 42,674 27,591 1990 48,634 31,335 1991 59,660 36,560 1992 78,530 41,055 1993 78,834 44,730 1994 71,874 49,095 1995 68,505 49,456 1996 59,347 38,510 1997 47,149 20,736 1998 38,393 19,005 1999 25,174 18,454 2000 25,522 17,347 2001 25,643 17,402 2002 26,464 16,371 Total 802,118 489,093 Graph "year" versus "# AIDS cases diagnosed" (plot the scatter plot). Do not include pre-1981 data. Perform linear regression. Write the equations. (Round your answers to the nearest whole number. Round r to four decimal places.) (a) Linear Equation: 9 - (b) a = (c) b= (d) (e) n-
Find the 14th percentile, P₁4, from the following data 1100 1500 1700 2200 2700 3200 3800 4600 5100 5200 5300 5400 5500 5700 5900 7000 7100 7200 7300 7700 8600 8700 P14 =
Given this data set below which consists of 49 data values answer the questions that follow. 110 120 150 160 180 190 210 220 240 250 350 360 470 490 550 560 660 700 750 760 830 930 270 280 330 380 420 460 520 520 530 580 590 650 710 730 740 780 790 810 840 860 870 940 820 920 950 990 1000 (a) Find the 32nd percentile: P32 = (b) Find the 79th percentile: P79 = (c) Find the percentile for the data value 520. Enter a number as your answer. For example, if the percentile is the 15th, then enter 15. (d) Find the percentile for the data value 950. Enter a number as your answer. For example, if the percentile is the 15th, then enter 15.
The following data shows the cost of electricity (in $) during July 2015 for a random sample of 50 one-bedroom apartments in a large city. a.Form a frequency distribution for the above data. b. Find arithmetic mean based on the frequency distribution you developed.
The table below shows data from a study relating a man's age to the average number of miles he can cover on foot in one hour. Age Miles 18 5.8 25 5.5 32 5.5 39 5.2 46 4.3 53 4.2 60 3.1 67 26 74 1.8
Find 64th percentile, P64, from the following data 130 160 170 180 190 220 250 1280 330 380 400 410 420 440 450 490 500 560 590 620 640 680 720 740 750 760 780 820 830 840 850 860 870 880 890 910 920 950 990 P64
The following data represent the monthly phone use, in minutes, of a customer enrolled in a fraud prevention program for the past 20 months. The phone company decides to use the upper fence ad the cutoff point for the number of minutes at which the customer should be contacted. What is the cutoff point?

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