Hours Spent in Child Care7.51.80.98.05.26.13.31.04.41.65.211.511.610.19.07.32.21.05.210.77.64.110.16.010.19.910.47.03.89.64.17.24.08.56.07.35.411.59.16.5 The time married men with children spend on child care averages 6.4 hours per week (Time, March 12, 2012). You belong to a professional group on family practices that would like todo its own study to determine if the time married men in your area spend on child care per week differs from the reported mean of 6.4 hours per week. A sample of 40 marriedcouples will be used with the data collected showing the hours per week the husband spends on child care. The sample data is contained in the Excel Online file below. Construct aspreadsheet to answer the following questions.XOpen spreadsheeta. What are the hypotheses if your group would like to determine if the population mean number of hours married men are spending in child care differs from the mean reported byTime in your area?Ho : μHa:μ # î7b. What is the sample mean and the p-value?What is the sample mean (to 1 decimal)?=1.566.46.4Calculate the value of the test statistic (to 2 decimals).0.1261hoursWhat is the p-value (to 4 decimals)? Do not round intermediate calculations.c. Select your own level of significance. What is your conclusion?Do not reject ⒸCheck My Workthe null. We don't haveReset Problemenough evidence to disprove the reported time. сSample SizeSample Mean (1 decimal)Sample Standard Deviation (4 decimals)Hypothesized MeanTest Statistic (2 decimals)Degrees of Freedomp-value (4 decimals)Workbook StatisticsD406.4EFormulasF#N/A#N/A#N/A#N/A#N/AGHIJKLMNGive Feedback to MicrosoftOF100% +

The hypothized mean: hours per week.The sample size: The sample data set is given as follows: Hours…

Answered: The time married men with children…

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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63.2 36.3 26.2 53.2 65.3 32.0 65.0 66.3 68.9 35.2 25.1 32.5 54.0 42.4 77.5 123.2 66.3 92.7 56.9 77.1 27.5 69.2 73.8 71.5 58.5 67.2 78.6 33.2 74.9 45.1 132.1 104.7 63.2 59.6 75.7 39.2 69.9 84.7 24.2 87.5 56.0 154.2 85.5 77.5 37.5 41.1 A USE SALT (a) Use a calculator with mean and sample standard deviation keys to find the sample mean x and sample standard deviation s. (Round your answers bto four decimal places.) x = 64.1000 s 27.0625 v crimes per 1000 people v crimes per 1000 people (b) Let us say the preceding data are representative of the population crime rates in Denver neighborhoods. Compute an 80% confidence interval for a, the population mean crime rate for all Denver neighborhoods. (Round your answers to one decimal place.) 58.0 x crimes per 1000 people ]x crimes per 1000 people lower limit upper limit 60.4
1. 50 Companies percentages of revenues spent on R&D are given below. 5.2 6.9 7.8 8.8 |10.5 5.6 6.9 7.9 9 10.5 5.9 7.1 8 9.2 |10.6| 6 | 7.1 |8 |9.4 |11.1 6.5 7.2 8.1 9.5 |11.3 |6.5 7.2 8.2 9.5 |11.7 6.5 7.5 8.2 9.6 |12.0 6.6 7.5 8.2 9.7 |13.2 6.8 7.78.4 9.9 |13.5 6.9 7.7 8.5|10.1|13.5 Find the following Mean = Median= Mode= • Range= Variance= • Lower Quartile= Upper Quartile= • Inter Quartile Range= • Standard Deviation= First SD interval, Number of data % of data Second SD interval Number of data % of data Third SD interval %3| Number of data % of data =
Samples of starting annual salaries for individuals entering the public accounting and financial planning professions follow. Annual salaries are shown in thousands of dollars. Public Accountant Financial Planner 51.2 59.8 57.3 59.2 54.2 56.0 51.9 58.5 58.0 50.9 50.0 48.2 54.1 54.9 50.9 52.6 49.7 52.9 50.8 49.9 (a) Use a 0.05 level of significance and test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planners.
Female: 15 14.85 15.2 14.25 13.85 13 13.6 13.7 14.05 12.7 14.05 13.65 13.25 13.25 13.55 12.95 13.55 13.05 11.85 13.2 11 13.8 12.25 12.1 12.1 11.6 11.9 12.05 10.75 11.2 10.55 11.1 10.45 9.6 13.85 14.25 14.8 14 14.5 13.75 13.55 12.55 13.2 13.7 13.35 13.25 12.95 13.4 13.35 13.3 12.3 13.55 12.8 12.4 13.1 12.3 12.6 12.65 11.9 10.2 12.05 11.7 10.4 10.75 9.8 9.6 10.75 9.75 9.55 9.05 14.65 14.2 15.35 14.6 14.3 14.75 13.65 13.7 14.25 13.8 14.1 13.6 14 14.25 13.2 14.4 13.25 13.7 13.15 13.05 13.45 12.4 13.3 12.75 12.2 12.6 11.55 11.6 11.6 10 10.9 10.35 11.75 11.3 10.3 10.9 Male: 13.55 13.75 13.5 14.25 13.35 13.85 13.5 13.1 12.8 12.35 13.25 10.6 12.6 13.35 13.5 13.55 12.9 11.8 13.05 13.4 12.05 11.05 11.8 11.8 11.9 12.35…
The accompanying table gives amounts of arsenic in samples of brown rice from three different states. The amounts are in micrograms of arsenic and all samples have the same serving size. The data are from the Food and Drug Administration. Use a 0.05 significance level to test the claim that the three samples are from populations with the same mean. Do the amounts of arsenic appear to be different in the different states? Given that the amounts of arsenic in the samples from Texas have the highest mean, can we conclude that brown rice from Texas poses the greatest health problem? Click the icon to view the data. What are the hypotheses for this test? OA. Ho: H₁ H₂ H3 H₁: H₁ H₂ H3 OB. Ho: H₁ H₂ H3 H₁ H₁ H₂ H3 O C. Ho: At least one of the means is different from the others H₁: H₁ H₂ H3 O D. Ho: H₁ H₂=H3 H₁: At least one of the means is different from the others Determine the test statistic. The test statistic is (Round to two decimal places as needed.) Determine the P-value. The P-value…
Samples of starting annual salaries for individuals entering the public accounting and financial planning professions follow. Annual salaries are shown in thousands of dollars. Public Accountant Financial Planner 50.2 48.0 59.8 50.2 57.3 54.1 59.2 56.9 53.2 50.9 54.0 54.6 50.9 48.7 59.5 52.9 57.0 50.8 52.9 48.9 (a) Use a 0.05 level of significance and test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planners. State the null and alternative hypotheses. H0: The two populations of salaries are identical.Ha: The two populations of salaries are not identical. H0: Median salary for public accountants − Median salary for financial planners > 0Ha: Median salary for public accountants − Median salary for financial planners = 0 H0: Median salary for public accountants − Median salary for financial planners ≥ 0Ha: Median salary for public accountants − Median salary for financial planners…
re.com New folder M Gmail O Maps O YouTube O stem Rapidldentity * Nintendo Account Tab Mrs. Haines wants to buy dog treats. Dog Treats Number Number of of Packages Dog Treats 3 21 35 7 49 9. How many dog treats are in 9 packages? O 34 O 56 O 63 O 72 Question 12 1 nts earch 15 16 40 1O 19 144 hol 274 %23 3. & 5 7\ 96
The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) Compute the z-score corresponding to the individual who obtained 38.3 miles per gallon. Interpret this result. (b) Determine the quartiles. (c) Compute and interpret the interquartile range, IQR. (d) Determine the lower and upper fences. Are there any outliers? E Click the icon to view the data. (a) Compute the A-score corresponding to the individual who obtained 38.3 miles per gallon. Interpret this result. standard deviation(s) V the The z-score corresponding to the individual is and indicates that the data value is (Type integers or decimals rounded to two decimal places as needed.) Enter your answer in the edit fields and then click Check Answer. Clear All 4 parts remaining 5 Drive tCon- Student port MacBook Air
Consider the data set below. 1.6 1.8 2.3 2.3 2.3 2.5 2.1 2.4 2.2 2.5 2.3 2.5 2.6 2.6 2.6 2.9 3.0 2.7 3.1 3.5 3.3 3.5 3.2 4.0 3.9 3.9 4.4 4.1 4.2 4.9 4.8 4.8 4.9 5.4 5.1 5.5 6.0 6.0 5.6 6.0 5.9 5,8 5.7 5.6 5.6 5.8 6.4 6.5 6.4 6.2 A relative frequency distribution of the data is given below. 0.2 0.1 1.6 2.1 2.6 3.13.6 414.6 5.1.5,6 6.1 6.6 What fraction of the measurements are less than 5.17 (Enter your answer as a fraction.) Relative Frequency
A sample of 35 liberal-arts graduates yielded the following starting annual salaries. Data are in thousands of dollars, rounded to the nearest hundred dollars. 49.0 45.8 50.3 49.6 50.0 47.7 51.8 47.3 46.7 47.0 48.1 50.1 43.6 48.0 47.7 49.8 46.4 46.1 48.5 48.9 48.2 48.1 46.2 47.3 51.7 49.0 48.2 49.9 48.1 49.8 49.5 50.4 45.3 45.3 46.5 Construct a stem-and-leaf plot on a separate sheet of paper and answer the following questions based on your plot. a) Yes or No, the stems range from 43 to 51, inclusive. b) Yes or No, The stem 44 has no values associated with it. c) Yes or No, There are no commas in my stem and leaf plot. c) What is the shape of the distribution?
The price per share of stock for a sample of 25 companies was recorded at the beginning of the first financial quarter and then again at the end of the first financial quarter. How stocks perform during the first financial quarter is an indicator of what is ahead for the stock market and the economy. Company End of 1st quarter Beginning of 1st quarter Bank of New York Mellon 54.19 53.82 Kraft Foods 55.70 77.02 E.I. du Pont de Nemours and Company 102.57 109.00 Consolidated Edison 79.95 83.58 Johnson & Johnson 126.01 139.23 Union Pacific 132.73 135.78 Comcast 32.06 41.07 Applied Materials 50.91 53.04 Pfizer 35.40 36.44 General Electric 14.05 17.98 AT&T 32.54 38.54 Cisco Systems 44.83 38.86 Home Depot 184.63 188.03 JP Morgan Chase 108.78 107.95 Procter & Gamble 71.96 90.65 Verizon 48.82 53.53 Devon Energy 36.20 42.23 Lilly 79.07 84.68 Microsoft 95.00 85.95 Coca Cola 42.59 45.59 Qualcomm 50.82 65.20 Exxon Mobil Corporation 76.95…
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Hours Spent in Child Care
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