100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
BUAL 2650 Gupta Exam 2 questions with rationales 100% pass $18.99
Add to cart
Quickly navigate to
Preview
  2.  
  3. BUAL 2650 Gupta
  4.  
  5. BUAL 2650 Gupta

Exam (elaborations)

BUAL 2650 Gupta Exam 2 questions with rationales 100% pass
 0 purchase
  • Course
  • BUAL 2650 Gupta
  • Institution
  • BUAL 2650 Gupta

BUAL 2650 Gupta Exam 2 questions with rationales 100% passBUAL 2650 Gupta Exam 2 questions with rationales 100% passBUAL 2650 Gupta Exam 2 questions with rationales 100% passBUAL 2650 Gupta Exam 2 questions with rationales 100% pass

Preview 2 out of 9  pages

Document information

  • April 15, 2025
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • bual 2650 gupta exam 2 questions with rationales 1

Written for

  • BUAL 2650 Gupta
  • BUAL 2650 Gupta

Seller

avatar-seller
Profjoe001

Reviews received

Content preview

BUAL 2650 Gupta Exam 2 questions with
rationales 100% pass

In testing for the equality of means from two independent populations, if the hypothesis of equal
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




population means is rejected at α = .01, it will ________ be rejected at α = .05
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




a. always ne




b. sometimes ne




c. never - answersa. always
ne ne ne ne




A new company is in the process of evaluating its customer service. The company offers two types of
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




sales: (1) Internet sales and (2) store sales. The marketing research manager believes that the
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




Internet sales are more than 10 percent higher than store sales. The null hypothesis would be
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




a. PInternet − Pstore > .10
ne ne ne ne ne




b. PInternet − Pstore < .10
ne ne ne ne ne




c. PInternet − Pstore ≥ .10
ne ne ne ne ne




d. PInternet − Pstore ≤ .10
ne ne ne ne ne




e. PInternet − Pstore = .10 - answersd. PInternet − Pstore ≤ .10
ne ne ne ne ne ne ne ne ne ne ne ne




A new company is in the process of evaluating its customer service. The company offers two types of
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




sales: (1) Internet sales and (2) store sales. The marketing research manager believes that the
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




Internet sales are more than 10 percent higher than store sales. The alternative hypothesis would
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




be stated as
ne ne ne




a. PInternet − Pstore > 0
ne ne ne ne ne




b. PInternet − Pstore < 0
ne ne ne ne ne




c. PInternet − Pstore ≥ .10
ne ne ne ne ne




d. PInternet − Pstore ≤ .10
ne ne ne ne ne




e. PInternet − Pstore > .10 - answerse. PInternet − Pstore > .10
ne ne ne ne ne ne ne ne ne ne ne ne




If we are testing the hypothesis about the mean of a population of paired differences with samples of
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




n1 = 10, n2 = 10, the degrees of freedom for the t statistic is ________.
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




a. 19 ne




b. 18 ne




c. 9 ne




d. 8 ne




e. 10 - answersc. 9
ne ne ne ne




The ________ measures the strength of the linear relationship between the dependent variable and
ne ne ne ne ne ne ne ne ne ne ne ne ne




the independent variable.
ne ne ne




a. correlation coefficient
ne ne




b. distance value
ne ne




c. Y-intercept ne




d. residual - answersa. correlation coefficient
ne ne ne ne ne

, The correlation coefficient may assume any value between
ne ne ne ne ne ne ne




a. 0 and 1 ne ne ne




b. −∞ and ∞ne ne ne




c. 0 and 8ne ne ne




d. −1 and 1ne ne ne




e. −1 and 0 - answersd. −1 and 1
ne ne ne ne ne ne ne ne




The following results were obtained as part of a simple regression analysis.
ne ne ne ne ne ne ne ne ne ne ne




r2 = .9162F ne ne ne




statistic from the F table = 3.59 ne ne ne ne ne ne




Calculated value of F from the ANOVA table = 81.87 ne ne ne ne ne ne ne ne ne




α = .05
ne ne




p-value = .000 ne ne




The null hypothesis of no linear relationship between the dependent variable and the independent
ne ne ne ne ne ne ne ne ne ne ne ne ne




variable
ne




a. is rejected
ne ne




b. cannot be tested with the given information
ne ne ne ne ne ne ne




c. is not rejected
ne ne ne




d. is not an appropriate null hypothesis for this situation. - answersa. is rejected
ne ne ne ne ne ne ne ne ne ne ne ne ne




The coefficient of determination measures the ________ explained by the simple linear regression
ne ne ne ne ne ne ne ne ne ne ne ne




model.
ne




a. correlation
ne




b. proportion of variation
ne ne ne




c. standard error
ne ne




d. mean square error - answersb. proportion of variation
ne ne ne ne ne ne ne ne




The ________ of the simple linear regression model is the value of y when the mean value of x is
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




zero.
ne




a. y-intercept
ne




b. slope ne




c. independent variable
ne ne




d. response variable - answersa. y-intercept
ne ne ne ne ne




In multiple regression analysis, the explained sum of squares divided by the total sum of squares
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




yields the __________.
ne ne ne




a. standard error
ne ne




b. F statistic
ne ne




c. R2 ne




d. adjusted R2 or R−2
ne ne ne ne




e. t statistic - answersc. R2
ne ne ne ne ne




Which one of the following is not an assumption about the residuals in a regression model?
ne ne ne ne ne ne ne ne ne ne ne ne ne ne ne




a. constant variance
ne ne




b. independence
ne

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Profjoe001. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $18.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

68123 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 15 years now

Start selling
$18.99
  • (0)
Add to cart
Added