Question

Listed below are the budgets​ (in millions of​ dollars) and the gross receipts​ (in millions of​...

Listed below are the budgets​ (in millions of​ dollars) and the gross receipts​ (in millions of​ dollars) for randomly selected movies. Construct a​ scatterplot, find the value of the linear correlation coefficient​ r, and find the​ P-value using

alphaαequals=0.050.05.

Is there sufficient evidence to conclude that there is a linear correlation between budgets and gross​ receipts? Do the results change if the actual budgets listed are

​$65 comma 000 comma 00065,000,000​,

​$86 comma 000 comma 00086,000,000​,

​$53 comma 000 comma 00053,000,000​,

and so​ on?

Budget​ (x)

6565

8686

5353

3232

203203

103103

9393

Gross​ (y)

6969

6262

4848

5656

513513

143143

4747

What are the null and alternative​ hypotheses?

Construct a scatterplot

The linear correlation coefficient r is

The test statistic t is

The​ P-value is

Because the​ P-value is ____ (greater or less) than the significance level 0.05 there ____ (is or is not) sufficient evidence to support the claim that there is a linear correlation between between budgets and gross receipts for a significance level of α=0.05

Do the results change if the actual budgets listed are $65,000,000 $86,000,000​, ​$53,000,000​, and so​ on? (options listed below)

A. Yes, the results would change because it would result in a different linear correlation coefficient.

B. No, the results do not change because it would result in a different linear correlation coefficient.

C. Yes, the results would need to be multiplied by​ 1,000,000.

D. No, the results do not change because it would result in the same linear correlation coefficient.

Homework Answers

Answer #1

Please check the given data is the same or not as your data values are repeated twice. Please do the comment I will edit my answer if there is any change.

Budget(x) Gross(y)
65 69
86 62
53 48
32 56
203 513
103 143
93 47

What are the null and alternative​ hypotheses?

HO:p=0

H1:p not equal to 0

Construct a scatterplot

The linear correlation coefficient r is 0.926

The test statistic t is 30.058

The​ P-value is 0.003

Because the​ P-value is ( less) than the significance level 0.05 there ____ (is) sufficient evidence to support the claim that there is a linear correlation between between budgets and gross receipts for a significance level of α=0.05

Do the results change if the actual budgets listed are $65,000,000 $86,000,000​, ​$53,000,000​, and so​ on? (options listed below)

A. Yes, the results would change because it would result in a different linear correlation coefficient

..................................................................................................................................................................................

Regression Analysis
0.857
r   0.926
Std. Error   70.486
n   7
k   1
Dep. Var. Gross(y)
ANOVA table
Source SS   df   MS F p-value
Regression 1,49,338.6036 1   1,49,338.6036 30.058 .0028
Residual 24,841.3964 5   4,968.2793
Total 1,74,180.0000 6  
Regression output confidence interval
variables coefficients std. error    t (df=5) p-value 95% lower 95% upper
Intercept -125.0177
Budget(x) 2.8553 0.5208 5.483 .0028 1.5166 4.1941
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