Question

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

1. What is the independent variable (X) and what is the dependent variable (y)

2. Write a null and alternative hypothesis statement

3. What is the R-squared value and interpret it’s meaning?

4. What is the correlation coefficient and interpret it’s meaning?

5. Predict the receipts for a movie that has a Twitter activity of 100,000 using the linear regression formula generated after you run the regression analysis in Excel (just like we did in the lecture notes)
   
   
6. At the 95% significance level, is there significant evidence of a relationship between Twitter activity and receipts?

7. Do you accept or reject the null hypothesis?

8. Based upon your answers above, provide us with a paragraph (3-4 sentence) conclusion that would be appropriate to explain the results to a senior executive that isn’t as familiar with statistics as you are!

Part 2 – Two Sample Hypothesis Testing

Using the Retirement funds spreadsheet, please determine if there is a significant difference between the average rate of return on Large Value and Large Growth stock funds.

1. What are the two variables of interest?

10. Write a null and alternative hypothesis statement
    
    
11. At the 95% significance level, is there significant evidence of a difference between fund rate of returns?

12. Do you accept or reject the null hypothesis?

13. Based upon your answer above, provide us with a paragraph (3-4 sentence) conclusion that would be appropriate to explain the results to a senior executive that isn’t as familiar with statistics as you are!

I need help. Thanks

Answer 1