One Friday night, there were 42 carry-out orders at Ashoka Curry Express. 28.56 17.76 14.04 18.00 25.31 29.00 26.46 18.74 24.24 24.03 40.77 31.10 34.57 15.14 36.72 17.43 47.10 17.36 47.96 16.71 30.69 ,7.02נ 32.58 25.68 34.21 17.37 33.65 46.56 40.69 26.08 39.03 33.79 27.58 19.71 14.43 30.70 38.36 36.73 27.76 15.19 29.63 43.07 Click here for the Excel Data Flle (a) Estimate the mean and standard deviation from the sample. (Round your answers to 4 decimal places.) Sample mean Sample standard deviation (b-1) Do the chi-square test at a = .025 (define bins by using method 3 (equal expected frequencies). Use 8 bins). (Perform a normal goodness-of-fit test for a = .025. Round your answers to 4 decimal places. Do not round your intermediate calculations.) Chi-square d.f. p-value (b-2) Can you reject the hypothesis that carry-out orders follow a normal population? O Yes O No

One Friday night, there were 42 carry-out orders at Ashoka Curry Express. 28.56 17.76 14.04 18.00 25.31 29.00 26.46 18.74 24.24 24.03 40.77 31.10 34.57 15.14 36.72 17.43 47.10 17.36 47.96 16.71 30.69 ,7.02נ 32.58 25.68 34.21 17.37 33.65 46.56 40.69 26.08 39.03 33.79 27.58 19.71 14.43 30.70 38.36 36.73 27.76 15.19 29.63 43.07 Click here for the Excel Data Flle (a) Estimate the mean and standard deviation from the sample. (Round your answers to 4 decimal places.) Sample mean Sample standard deviation (b-1) Do the chi-square test at a = .025 (define bins by using method 3 (equal expected frequencies). Use 8 bins). (Perform a normal goodness-of-fit test for a = .025. Round your answers to 4 decimal places. Do not round your intermediate calculations.) Chi-square d.f. p-value (b-2) Can you reject the hypothesis that carry-out orders follow a normal population? O Yes O No

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 toble shows the annual compensation of 40 randomly chosen CEOS (millions of dollars). 5.35 1.93 24.93 23.62 8.19 7.60 6.38 4.63 $14.57 5.42 3. 26 2.49 4.12 5.56 5.94 2.23 192.00 16.07 1e. 32 15.58 82.81 17.55 27.08 B.88 5.98 1.73 8.79 1.38 26.67 13.00 19.41 9.86 4.53 31.47 12.83 20.16 6.16 8.89 4.46 4.e5 picture Click here for the Excel Data File (a) Select the correct histogram for the above data. Histogram A Histogram B Histogram C Histogram Hatogram 35 30 25 20 15 10 Percent 三

What is the confidence level of each of the following confidence intervals for u? Complete parts a through e. Click the icon to view the table of normal curve areas. a. x+1.96 % (Round to two decimal places as needed.) b. x+1.645 % (Round to two decimal places as needed.) c. X+2.575 % (Round to two decimal places as needed.) d. x+1.282 % (Round to two decimal places as needed.) e. x+0.99 % (Round to two decimal places as needed.)
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The table shows the annual compensation of 40 randomly chosen CEOs (millions of dollars). 4.93 1.93 24.16 10.10 13.76 6.28 3.28 4.61 192.38 17.25 25.53 8.92 12.48 18.24 1.80 6.58 67.86 13.97 27.34 4.45 11.50 4.41 2.27 6.22 26.20 14.43 18.61 4.64 9.42 3.23 0.88 3.56 31.07 12.81 23.59 6.59 8.74 4.25 1.38 2.22 (b) Describe the shape of the histogram. A) The distribution is skewed to the left. B) The distribution is symmetric. C) The distribution is skewed to the right (c) Identify any unusual values. (Round your answers to 2 decimal places.) Unusual values million million
A sample containing years to maturity and yield for 40 corporate bonds are contained in the file CorporateBonds. (Round your answers to four decimal places.) Company Ticker Company Ticker Years to Years to Maturity Yield Maturity Yield HSBC 12.00 4.079 FCX 10.00 4.030 GS 9.75 5.367 GS 25.50 6.913 4.75 3.332 RABOBK 4.75 2.805 MS 9.25 5.798 GE 26.75 5.138 C 9.75 4.414 НCN 7.00 4.184 TOTAL 5.00 2.069 GE 9.50 3.778 MS 5.00 4.739 VOD 5.00 1.855 WFC 10.00 3.682 NEM 10.00 3.866 ТОTAL 10.00 3.270 GE 1.00 0.767 ТОTAL 3.25 1.748 C 25.75 8.204 ВАС 9.75 4.949 SHBASS 5.00 2.861 RABOBK 9.75 4.203 РАА 10.25 3.856 GS 9.25 5.365 GS 3.75 3.558 АХР 5.00 2.181 ТОTAL 1.75 1.378 MTNΑ 5.00 4.366 MS 4.00 4.413
Commercial Residential4.17 9.795.38 5.973.22 8.095.42 5.814.91 8.552.59 3.973.53 8.113.01 8.664.69 10.356.17 6.980.33 5.675.13 4.056.35 6.156.47 9.853.98 5.67
maxsnov [1) 15.2 25.4 32.8 14.5 23.6 37.8 43.2 22.9 20.3 21.1 25.7 24.6 25.9 22.5 32.8 # [16) 19.6 11.0 18.2 10.8 21.3 22.0 13.6 21.8 21.0 21.2 12.2 20.2 17.2 40.0 27.8 ## [31] 13.2 20.8 21.4 23.6 35.8 33.9 31.0 18.8 15.8 18.8 17.2 41.2 35.2 31.8 23.8 #* [46] 29.8 20.4 16.0 45.6 20.8 20.0 Consider the data on the maximum daily snowfall amounts per winter season The histogram of the data looks like as follows: Histogram of maxsnow 10 20 30 40 50 maxsnow (1) Which distribution would be a suitable candidate for the population distribu- tion? Provide a brief rationale for your answer. Consider the data set consisting of the following 15 measurements: measurenents aa (1) aa (10] -0.27 -222.00 -1.16 -0.77 -197.00 -0.99 1.49 -0.92 1.83 -1.29 -0.01 -0.33 -1.10 0.50 0.18 There are two errors in the above sample, due to a faulty measurement device. In reality, the second and last measurements should have been 2.22 and 1.97, re- spectively. (2) Select which statements are TRUE: A) The sample mean…
The table shows the annual compensation of 40 randomly chosen CEOS (millions of dollars). 5.54 1.88 17.40 15.42 12.03 13.03 25.31 25.19 25.79 20.28 20.74 7.31 7.45 6.23 4.61 6.44 13.90 10.15 9.10 8.15 8.94 5.82 192.84 84.66 25.86 33.46 2.61 2.66 1.22 3.95 15.58 4.79 3.71 4.56 4.33 4.33 4.79 2.06 0.93 1.29 Click here for the Excel Data File (a) Select the correct histogram for the above data. Histogram A Histogram B Histogram C Histogram 40 Histogram 35 40 Histogram 30 35 40 25 30 35 20 25 30 15 20 25 10 15 20 10 15 10 5 180 Compensation 120 180 120 140 160 180 Compensation Compensation O Histogram A O Histogram B O Histogram C (b) Describe the shape of the histogram. O The distribution is skewed to the right. O The distribution is symmetric. O The distribution is skewed to the left. ( Prev 5 of 19 Next > Percent Percent 140 091 Percent
Sales Accounts Marketing Repairs Total 20-29 10 27 43 88 17.74 *** 26.20 23.62 30-39 29 26 38 22 23.18 26.72 34.24 30.86 40-49 33 32 72 82 219 44.15 50.88 65.20 58.77 50-59 81 106 86 54 327 65.92 75.97 97.36 87.75 Total 151 ** 223 201 749 Chi-Sg = 5.348 + **** + 0.024 + 15.912 + 1.459 + 0.019 + 0.413 + 2.544 + 2.816 + 7.003 + 0.709 + 9.182 + 3.448 + 11.875 + 1.325 + 12.983 = 80.395 DF = *****, P-Value = No cells with expected counts less than 5. ****** d) What is the assumption on which these calculations are based? e) What is relevance of the statement" No cells with expected counts less than 5." f) Do the records suggest a relationship or independence between age and department for the employees of this car dealership at the 5% significance level?