ReceiptTwitterActivityMovie14763219509The Devil Inside57966405The Dictator15829165128Paranormal Activity36871579288The Hunger Games65648995Bridesmaids747711104Red Tails91528054Act of ValorA. What is the independent variable (X) and what is the dependent variable (y)IB. Write a null and alternative hypothesis statementC. What is the R-squared value and interpret it's meaning?D. What is the correlation coefficient and interpret it's meaning?E. Predict the receipts for a movie that has a Twitter activity of 100, 000 using the linearregression formula generated after you run the regression analysis in Excel (just like wedid in the lecture notes)F At the 95% significance level, is there significant evidence of a relationship betweenTwitter activity and receipts?

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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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Movie Twitter Activity Receipts The Devil Inside 219509 14763 The Dictator 6405 5796 Paranormal Activity 3 165128 15829 The Hunger Games 579288 36871 Bridesmaids 6564 8995 Red Tails 11104 7477 Act of Valor 9152 8054 What is the independent variable (X) and what is the dependent variable (y) Write a null and alternative hypothesis statement
Team Conf Yds/Att Int/Att Win% Arizona Cardinals NFC 6.3 0.041 50.1 Atlanta Falcons NFC 7.0 0.021 62.2 Carolina Panthers NFC 7.2 0.032 37.3 Cincinnati Bengals AFC 6.2 0.026 56.2 Detroit Lions NFC 7.2 0.024 62.6 Green Bay Packers NFC 9.0 0.013 93.7 Houstan Texans AFC 7.6 0.018 62.3 Indianapolis Colts AFC 5.6 0.026 12.2 Jacksonville Jaguars AFC 4.4 0.031 31.4 Minnesota Vikings NFC 5.8 0.033 18.5 New England Patriots AFC 8.1 0.021 81.1 New Orleans Saints NFC 8.1 0.020 81.3 Oakland Raiders AFC 7.6 0.043 50.0 San Francisco 49ers NFC 6.5 0.012 81.3 Tennessee Titans AFC 6.5 0.023 56.0 Washington Redskins NFC 6.4 0.040 31.4 The National Football League (NFL) records a variety of performance data for individuals and teams. To investigate the importance of passing on the percentage of games won by a team, the data in the Excel Online file below show the conference (Conf), average number of passing yards per attempt (Yds/Att), the number of interceptions thrown…
When random samples are drawn so that the selection of a case for one sample has no effect on the selection of cases for another sample, the samples are A. Dependent B. Independent C. Simple D. Systemo
In a test of the hypothesis that females smile at others more than males do, females and males were videotaped while interacting and the number of smiles emitted by each sex was noted. Using the following information regarding number of smiles in the five-minute interaction, examine whether there are sex differences in the number of smiles. Males Females N1 = 5 N2 = 5 X1 = 7.6 X2 = 15.2 S12 = 17.04 S22 = 8.96 Which is the independent variable and which is the dependent variable? What is your research hypothesis? What is your null hypothesis? Which test should you use (Two Sample Independent t, ANOVA, Chi-square, or correlation )? Calculate the test statistic. interpret whether you have statistically significant results when α = .05. State whether the null hypothesis is rejected. Include critical region. Provide an overall sentence about the…
Compute by hand Do not use excel, google etc. and upload your work 1-Compute a T-test for dependent means to analyze if there is a difference in their income pre and post receiving their masters degree. Total number Pre X Masters Post Y Masters X2 Y2 XY 1 14 22 196 484 308 2 24 24 576 576 576 3 35 44 1225 1936 1540 4 57 59 3249 3481 3363 5 35 30 1225 900 1050 6 34 67 1156 4489 2278 7 88 95 7744 9025 8360 8 57 65 3249 4225 3705 Total 8 344 406 18620 25116 21180 Total Divide 8 43 50.75 2327.5 3139.5 2647.5 How would you interpret: t(12) = 0.12, p >.05? What is the…
The compact car market in the United States is extremely competitive. Sales for six of the top models for six months in 2011 follow (Motor Trend, November 2, 2011). Month Chevy Cruze Ford Focus Hyundai Elantra Honda Civic Toyota Corolla VW Jetta May 22711 22303 20006 18341 16985 16671 Jun 24896 21385 19992 18872 17485 17105 Jul 24468 17577 15713 15181 14889 14006 Aug 21897 16420 15054 14500 14093 12083 Sep 18097 16147 15023 14386 13724 10309 Oct 16244 16173 14295 13058 13000 12386 At the .05 level of significance, test for any significant difference in the mean number of cars sold per month for the six models. If your answer is zero, enter "0". Source DF SS (to the whole number) MS (to the whole number) F (to 2 decimals) p (to 3 decimals) Auto Month Error Total
Workers in Company XYZ used 200 computers for their daily operation. In that company, the computers are categorized into type A and B. The workers usually complained that they experience performance problems with the computers more than once per week. Based on a survey, the company found that fifty of the Type A computers will encounter problems more than once per week. Meanwhile seventy-five of the Type B computers do not experience problems more than once per week. There are 120 Type B computers in the company. Based on the above scenario determined whether the events “Type A computer” and “experience problems more than once per week” are independent event? Explain.
A corn breeder wishes to improve yield. As part of their work, the narrow-sense heritability for corn yield is calculated to be 0.3. If the average yield in the starting population is 400 and the breeder selects for breeding plants with an average yield of 500, what is the selection diferential? A. 200 B. 400 C. 100 D. 500 E. 120
what would a positive association mean betwwen these two variables? briefly explain why a poaitive relationship might make sense in.this context.
The head of the marketing division of a leading chocolate manufacturer must decide among our different wrapper styles for the chocolate. To provide a database for the decision, he has the chocolate placed in the different wrappers and distributes them to five supermarkets. At the end of 2 weeks, he finds that the following amounts of chocolate were sold: Wrapper A Wrapper B Wrapper C Wrapper D 90 98 130 82 State the dependent and independent variable Is this directional or non directional test
Justify is it true or false? It is possible for variables to have r=0 but still have a strong association.
Explain Which of the following would have the largest influence? (h is the leverage, R is the studentized residual)X:1, Y:2, h:0.39, R:1.2X:2, Y:3, h:1.23, R:-0.13X:3, Y:5, h:1.21, R:-1.68

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