### 1 jean siskel is an entertainment analyst for west

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1. Jean Siskel is an entertainment analyst for West Coast Securities. He is trying to develop a model to estimate gross earning generated by a new movie release.  He has collected the following data on 20 movies: Gross Earnings, Production Costs, Promotion Costs, and if the movie is based on a bestseller novel:

 Gross Earnings Production Cost Promotion Cost Movie Millions \$ Millions \$ Millions \$ Novel 1 28 4.2 1 0 2 35 6 3 1 3 50 5.5 6 1 4 20 3.3 1 0 5 75 12.5 11 1 6 60 9.6 8 1 7 15 2.5 0.5 0 8 72 10 12 1 9 45 6.4 8 1 10 37 7.5 5 0 11 30 5.0 1 1 12 63 10.1 10 0 13 58 7.8 9 1 14 50 6.9 10 0 15 24 3.5 4 0 16 82 11.0 15 1 17 48 10.7 1 1 18 34 6.6 2 0 19 50 8.4 3 1 20 45 10.8 5 0

a. What type of variable is novel?

b. What is the estimated multiple linear regression equation derived from this data?

c. What are the regression coefficients for each X variable?  Interpret the regression coefficient.

d. Will Jean be pleased with the results?

e. Interpret the intercept value.

2. The following data represent revenues in thousands of dollars for a manufacturer of small electric appliances.

 Year Quarter Revenues 1996 1 514 1996 2 822 1996 3 648 1996 4 976 1997 1 616 1997 2 884 1997 3 678 1997 4 996 1998 1 658 1998 2 850 1998 3 714 1998 4 1052

a) Calculate the moving averages for this time series.

b) Find the seasonal index for each quarter.

c) From the fourth quarter of 1997 to the first quarter of 1998, revenues declined.  What happened on a seasonally adjusted basis?

d) Compute the forecast for the second quarter of 2002. extra credit  Find the regression equation to predict the long term trend in the seasonally adjusted revenues.

3. Bay Area University enrolls MBA students in three cohort programs: Weeknight, Saturday, and Distance. Dean Ed Epstein wants to know if there is a difference in the average of the students in the three programs.  He has his assistant take a random sample of 5 students from each program and record their ages.

 Weeknight Saturday Distance 29 32 25 27 33 24 30 31 24 27 34 25 28 30 26

a) State the Null hypothesis and the Research hypothesis to be tested

b) Calculate the F statistic.

c) Should the Null hypothesis be rejected at the 5% level of significance?

d) Draw box plots for the different programs.

e) Using the least-significant difference test, identify the significant differences between the programs.

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 1 for each of the following t values indicate whether the t : 1. for each of the following t values indicate whether the t is statistically significant for a two-tailed test at the Wal-mart cost of capitalwal-mart with 50 billion in sales : wal-mart cost of capitalwal-mart with 50 billion in sales in 2010 is the worlds largest retailer. it operates nearly Mtiple comparisonsscoretukey hsdi formatj formatmean : multiple comparisonsscoretukey hsdi formatj formatmean difference i-jstd. errorsig.95 confidence Systems analysis and database designyou should back up your : systems analysis and database designyou should back up your answers with theoryreferences from reliable sources - more 1 jean siskel is an entertainment analyst for west : 1. jean siskel is an entertainment analyst for west coast securities. he is trying to develop a model to Question 1a corporation produces packages of paper clips : question 1a corporation produces packages of paper clips. the number of clips per package varies as indicated below for 1 consider the following correlation coefficients presented : 1. consider the following correlation coefficients presented belowr -.98nbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbsp r 1 the test averages for 40 students are listed below use 8 : 1 the test averages for 40 students are listed below. use 8 classes not bins to construct a frequency distribution 1 for the 16 teams in the national league data is shown for : 1. for the 16 teams in the national league data is shown for the team batting averages as of august 27 2012.

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