Question

In: Statistics and Probability

In what follows use any of the following tests: Regression, Multiple Regression, one-sided t-test, or two-sided...

In what follows use any of the following tests: Regression, Multiple Regression, one-sided t-test, or two-sided t-test. All conclusions should be based on a 5% P-value threshold.

Choose the best fitting answer.

Open Flyers_Customers data. SETUP: In order to increase the number of customers, your boss decided to try distributing flyers. The data represent the number of flyers, as well as number of customers per given day. Given the data, your job is to perform the appropriate statistical test or procedure and help your boss with the decision.

https://www.limes.one/Content/DataFiles/Fliers_Customers.txt

9. What test did you perform?

  • a. Regression
  • b. Multiple Regression
  • c. One-sided t-test
  • d. Two-sided t-test

10. What is the P-value?

  • a. 0.660577
  • b. 0.330288
  • c. 3.23E-06
  • d. 0.029217
  • e. None of these

11. What is the Statistical interpretation?

  • a. Since the P-value is very small, we can conclude that more flyers will bring more customers.
  • b. Since the P-value is too large, we cannot conclude that more flyers will bring more customers.
  • c. Since the P-value is too large, we cannot claim that two averages are different.
  • d. None of these.

12. What is the conclusion?

  • a. The test is inconclusive; thus nothing can be concluded.
  • b. The test is conclusive; more flyers means more customers.
  • c. The test is inconclusive; we cannot claim that two averages are different.
  • d. None of these.

Solutions

Expert Solution

SUMMARY OUTPUT
Regression Statistics
Multiple R 0.581359801
R Square 0.337979218
Adjusted R Square 0.282810819
Standard Error 62.15013327
Observations 14
ANOVA
df SS MS F Significance F
Regression 1 23663.75978 23663.75978 6.126319177 0.02921709
Residual 12 46351.66879 3862.639066
Total 13 70015.42857
Coefficients Standard Error t Stat P-value Lower 95% Upper 95%
Intercept 315.477707 38.85867524 8.118591411 3.23304E-06 230.8119269 400.1434872
Fliers 0.229681529 0.09279536 2.475140234 0.02921709 0.027497808 0.431865249

9. What test did you perform?

  • a. Regression

10. What is the P-value?

  • d. 0.029217

11. What is the Statistical interpretation?

If the p-value is less than 0.05, we reject the null hypothesis that Beta 1 =0

  • a. Since the P-value is very small, we can conclude that more flyers will bring more customers.

12. What is the conclusion?

  • b. The test is conclusive; more flyers means more customers.

Related Solutions

In what follows use any of the following tests: Regression, multiple regression, one-sided t-test, or two-sided...
In what follows use any of the following tests: Regression, multiple regression, one-sided t-test, or two-sided t-test. All conclusions should be based on 5% P-value threshold. Choose the best fitting answer. Open Brains data. SETUP: Since females are on average smaller than males, some people believe that female brains should be smaller as well (smaller volume). Given the data, your job is to perform the appropriate statistical test or procedure and help them decide. 5. What test did you perform?...
In what follows use any of the following tests: Regression, multiple regression, one- sided t-test, or...
In what follows use any of the following tests: Regression, multiple regression, one- sided t-test, or two-sided t-test. All conclusions should be based on 5% P-value threshold. Choose the best fitting answer. Open TV_Restaurants data. SETUP: The data represents weekly profit (in thousands) for each of the 20 restaurants. 10 restaurants were equipped with new TV sets while the remaining 10 were not. Management wants to see if there is any difference in the profit. Given the data, your job...
In what follows use any of the following tests: Regression, multiple regression, one- sided t-test or...
In what follows use any of the following tests: Regression, multiple regression, one- sided t-test or two-sided t-test. All conclusions should be based on 5% P-value threshold. Choose the best fitting answer. Open Brains data. 13. Task A: Perform two-sided t-test comparing the birth order and sex columns. What is the P-value? a. 1 b. 0.5 c. 0.000794488 d. None of these 14. Task B: Perform regression where X-axis is the birth order and Y-axis is the sex (gender). What...
In what follows, use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one-sided t-test...
In what follows, use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one-sided t-test or two-sided t-test. All the procedures should be done with a 5% P-value or a 95% confidence interval. Upload the data HeartRate_Exercise. These data are based on 45 randomly chosen high school students. SETUP: It is believed that high school students who do not exercise have a heart rate (at rest) above 70. Given the data your job is to confirm or disprove this...
what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test...
what follows use any of the following tests/procedures: Regression, multiple regression, confidence intervals, one sided T-test or two sided T-test. All the procedures should be done with 5% P-value or 95% confidence interval.Some answers are approximated, choose the most appropriate answer. Open Brains data. SETUP: Some people believe that the first born children are more intelligent. Given the data your job is to confirm or disprove this assertion. I. What test/procedure did you perform? (6.66 points) a. One sided T-test...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval. Open Brain data. SETUP: It is believed that the larger the head circumference the larger the brain volume should be. Given the data your job is to confirm or disprove this assertion. DATA: CCMIDSA: Corpus Collasum Surface Area (cm2) FIQ: Full-Scale IQ HC: Head Circumference (cm) ORDER: Birth Order PAIR:...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval. Open Brain data. Claim: Male and female subjects have different total (brain) surface areas. 9. What test/procedure did you perform? a. One-sided t-test b. Regression c. Two-sided t-test d. ​​Confidence interval 10. What is the P-value/margin of error? a. 0.450365624 b. 1.10877E-11 c. 0.435460528 d. 0.900731248 e. ​​None of these...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval. Use the Brains data. SETUP: Is it reasonable to claim that the average head circumference is less than 56? 5. What test/procedure did you perform? a. One-sided t-test b. Two-sided t-test c. Regression d. ​​Confidence interval 6. What is the P-value/margin of error? a. 2.30791 b. 0.00166 c. 4.72877 d....
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided...
In what follows use any of the following tests/procedures: Regression, confidence intervals, one-sided t-test, or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval. Open Brain data. SETUP: It is believed that the person whose brain has larger surface area (i.e. TOTSA: Total Surface Area) that the person will have the larger brain volume as well. Given the data your job is to confirm or disprove this assertion. 1. What test/procedure did you perform?...
In what follows use any of the following tests/procedures: Regression, multiple regressions, confidence intervals, one-sided t-test...
In what follows use any of the following tests/procedures: Regression, multiple regressions, confidence intervals, one-sided t-test or two-sided t-test. All the procedures should be done with 5% P-value or 95% confidence interval Upload CARS data. https://www.limes.one/Content/DataFiles/cars04.txt SETUP: It is believed that Jaguars’ Highway mileage is different from that of Mercedes. Given the data your job is to confirm or disprove this belief. (CAREFULL: sort the data in order to extract the needed information). 5. What test/procedure did you perform? a....
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT