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BUAL 2650 - Gupta Exam 2 questions and answers
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BUAL 2650 - Gupta Exam 2 questions and answersBUAL 2650 - Gupta Exam 2 questions and answersBUAL 2650 - Gupta Exam 2 questions and answersBUAL 2650 - Gupta Exam 2 questions and answers

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

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  • bual 2650 gupta exam 2 questions and answers

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BUAL 2650 - Gupta Exam 2 questions and
answers


In testing for the equality of means from two independent populations, if the hypothesis of equal
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population means is rejected at α = .01, it will ________ be rejected at α = .05. - answersalways
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A new company is in the process of evaluating its customer service. The company offers two types of
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sales: (1) Internet sales and (2) store sales. The marketing research manager believes that the
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Internet sales are more than 10 percent higher than store sales. The null hypothesis would be -
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answersPInternet − Pstore ≤ .10.
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A new company is in the process of evaluating its customer service. The company offers two types of
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sales: (1) Internet sales and (2) store sales. The marketing research manager believes that the
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Internet sales are more than 10 percent higher than store sales. The alternative hypothesis for this
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problem would be stated as - answersPInternet − Pstore > .10.
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If we are testing the hypothesis about the mean of a population of paired differences with samples of
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n1 = 10, n2 = 10, the degrees of freedom for the t statistic is ________. - answers18
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The ________ measures the strength of the linear relationship between the dependent variable and
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the independent variable. - answerscorrelation coefficient
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The correlation coefficient may assume any value between - answers−1 and 1.
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The following results were obtained as part of a simple regression analysis.
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r2 = .9162 ne ne




F statistic from the F table = 3.59
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Calculated value of F from the ANOVA table = 81.87 ne ne ne ne ne ne ne ne ne




α = .05
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p-value = .000 ne ne




The null hypothesis of no linear relationship between the dependent variable and the independent
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variable - answersis rejected.
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The coefficient of determination measures the ________ explained by the simple linear regression
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model. - answersproportion of variation
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The ________ of the simple linear regression model is the value of y when the mean value of x is
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zero. - answersy-intercept
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In multiple regression analysis, the explained sum of squares divided by the total sum of squares
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yields the __________. - answersR2
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Which one of the following is not an assumption about the residuals in a regression model? -
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answersvariance of zero
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