A random sample of companies in electric utilities (I), financial services (II), and food processing (III) gave the following information regarding annual profits per employee (units in thousands of dollars). I II III 49.3 55.4 38.7 43.3 24.8 37.9 32.5 41.2 10.4 27.7 29.4 32.3 38.5 39.8 15.8 36.3   42.3 20.7     Shall we reject or not reject the claim that there is no difference in population mean annual profits per employee in each of the three types of companies? Use a 1% level of significance. (b) Find SSTOT, SSBET, and SSW and check that SSTOT = SSBET + SSW. (Use 3 decimal places.) SSTOT =   SSBET =   SSW =   Find d.f.BET, d.f.W, MSBET, and MSW. (Use 3 decimal places for MSBET, and MSW.) dfBET =   dfW =   MSBET =   MSW =   (c) Find the value of the sample F statistic. (Use 3 decimal places.) (d) What are the degrees of freedom? (e) Make a summary table for your ANOVA test.

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: n=218, r =52, α = 0.10 claim : p is less than 0.301

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: The claim is that p is more than 0.304.

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: We have given that n = 215 r = 46 p = 0.301 p̂ = r/n =46/215 = 0.2140

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: Null Hypothesis: H0: p=0.301 Alternative Hypothesis: H1:p<0.301 Given information:…

Q: 3.4 3.9 4.2 a. The word "doubles" is used in the subheading to describe the increase in cocaine use…

A: The article says that cocaine use doubled from 2004 to 2005, but the data in Table 1.1 shows a 1.4%…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A:

Q: A rodentologist investigating various aspects of the aging process wanted to see whether staying…

A: We perform ANOVA using the step by step procedure in excel as below: Enter the data into excel…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: Given information: Sample size, n = 225 The number of entries that had a first nonzero digit of 1 is…

Q: The following table shows a sample of the expense ratios for different types of stock funds. Use a…

A: Given data: Mid-Cap Funds Small-Cap Funds Hybrid Funds Specially Funds 1.3 2 2 1.3 1.1 1.4…

Q: Palisades Eco-Park is a small ecological reserve that admits a relatively small number of visitors…

A: Introduction: It is of interest to estimate the labor cost using the number of visitors. Thus, the…

Q: for 100 retirees Variabies Observations Variable v Type V Form V Values V Missing y Observations…

A: Since data is not available, so only last two questions are answerd. Please provide the data to get…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: From the given information we conduct Z test for proprtion.

Q: economist wonders in corporate productivity in some countries is more volache than in other…

A: FranceGermany4.92.65.13.63.13.63.64.92.75.53.55.52.854.45.45.73.23.43.54.13.76.82.62.92.83.237.236.5…

Q: The United States federal government shutdown of 2018-2019 occurred from December 22, 2018 until…

A:

Q: measure of a company's productivity is annual percentage yield based on total company assets. A…

A: Step 1: The sample of the first sample: By using EXCEL, 1.enter the data 2.Enter the formula…

Q: As health-care costs continue to increase, the number of employers who offer their employees…

A: The objective of this question is to construct a 95% confidence interval for the mean savings per…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: Given data : Claim :  p is less than 0.301 number of success r = x= 50.0 sample size, n…

Q: a television set that also have a VCR. Year 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988…

A:

Q: The Springfield Daily Gazette has reported that the average salary for City of Springfield employees…

A: Lack of symmetry of tails ( about mean) of a frequency distribution curve is known as skewness. The…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: Given information- Population proportion, p = 0.301 Sample size, n = 218 The entries had a first…

Q: Consider the following data: Monthly Profit of an Auto Repair Shop Month Jan-14 Feb-14 Mar-14…

A: Given that, Monthly Profit of an Auto Repair Shop:- Month Jan-14 Feb-14 Mar-14 Apr-14 May-14…

Q: The table below contains unemployment rates for a sample of metropolitan areas in four regions of a…

A: null and alternative hypothesis      first choice is correct test statisticsF= 7.39 P value…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: Hello there! there are more than 3 sub parts in the given question. Cannot answer more than three…

Q: The following table reports a portion of the annual returns (in percent) for these two funds from…

A: Explanation : You have written your data set like 2000-2.16-18.57 and so on. So I will consider ,…

Q: The following table was presented in an article summarizing a study to compare a new drug to a…

A: Given Information: Consider the given information:

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A:

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A:

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: Given that  The Population proportion is =0.301 Sample size (n)=225 The number of first non zero…

Q: Recall that ims that very large data digit disproportionately often. In fact, research has shown…

A: The probability of getting a number with "1" as the leading digit is about 0.301.Sample size Number…

Q: Compute a 95% confidence interval for the mean economic dynamism of middle-income countries by…

A:

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A FiveThirtyEight.com article reports that “Horror movies get nowhere near as much draw at the box…

A: Conditions for checking the model fit: The error term must be normally distributed with zero mean…

Q: Recall that Benford's Law claims that numbers chosen from very large data files tend to have "1" as…

A:

Q: Test the claim that p is more than 0.301. Use ? = 0.10 (a) What is the value of the sample test…

A: Given that Sample size n = 228 Number with leading digit 1 = 85 Level of significance = 0.10

Q: Product failure behavior. An article in Hotwire (Dec. 2002) discussed the length of time till…

A: The product time is normally distributed..The objective is to find the required probabilities.

Q: An economist wonders if corporate productivity in some countries is more volatile than in other…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.