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2. A university is interested in promoting graduates of its honors program by establishing tha the mean GPA of these graduates exceeds 3.50. A sample of 36 honors students is taken and is found to have a mean GPA equal to 3.60. The population standard deviation is assumed to equal 0.40. At a 5% significance level, the decision is to A. reject Ho we can condlude that the mean GPA is significantly greater than 3.50 B. reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50 C. not reject Ho we can concdude that the mean GPA is significantly greater than 3.50 D. not reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50 If the null hypothesis is rejected at a 1% significance level, then A. the null hypothesis will be rejected at a 5% significance level B. the alternative hypothesis will be rejected at a 5% significance level C. the null hypothesis will not be rejected at a 5% significance level D. the alternative hypothesis will not be rejected at a 5% significance level 3. Vermont-based Green Mountain Coffee Roasters dominates the market for single-serve coffee in the United States, with its subsidiary Keurig accounting for approximately 70% of sales ("Rivals Try to Loosen Keurig's Grip on Single-Serve Coffee Market," Chicago Tribune, February 26), But Keurig's patent on K-cups, the plastic pods used to brew the coffee, is expected to expire this year, allowing other companies to betterhtompete. Suppose a potential competitor has been conducting blind taste tests on its blend and finds that 47% of consumers strongly prefer its French Roast to that of Green Mountain Coffee Roasters, After tweaking its recipe, the competitor conducts a test with 144 tasters, of which 72 prefer its blend. The competitor daims that its new blend is preferred by more than 47% of consumers to Green Mountain Coffee roasters' French Roast. What is the value of the appropriate test statistic to test this daim 4. A, t43 = 0,721 В. Z 3D 0.721 C. t143 1,96

2. A university is interested in promoting graduates of its honors program by establishing tha the mean GPA of these graduates exceeds 3.50. A sample of 36 honors students is taken and is found to have a mean GPA equal to 3.60. The population standard deviation is assumed to equal 0.40. At a 5% significance level, the decision is to A. reject Ho we can condlude that the mean GPA is significantly greater than 3.50 B. reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50 C. not reject Ho we can concdude that the mean GPA is significantly greater than 3.50 D. not reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50 If the null hypothesis is rejected at a 1% significance level, then A. the null hypothesis will be rejected at a 5% significance level B. the alternative hypothesis will be rejected at a 5% significance level C. the null hypothesis will not be rejected at a 5% significance level D. the alternative hypothesis will not be rejected at a 5% significance level 3. Vermont-based Green Mountain Coffee Roasters dominates the market for single-serve coffee in the United States, with its subsidiary Keurig accounting for approximately 70% of sales ("Rivals Try to Loosen Keurig's Grip on Single-Serve Coffee Market," Chicago Tribune, February 26), But Keurig's patent on K-cups, the plastic pods used to brew the coffee, is expected to expire this year, allowing other companies to betterhtompete. Suppose a potential competitor has been conducting blind taste tests on its blend and finds that 47% of consumers strongly prefer its French Roast to that of Green Mountain Coffee Roasters, After tweaking its recipe, the competitor conducts a test with 144 tasters, of which 72 prefer its blend. The competitor daims that its new blend is preferred by more than 47% of consumers to Green Mountain Coffee roasters' French Roast. What is the value of the appropriate test statistic to test this daim 4. A, t43 = 0,721 В. Z 3D 0.721 C. t143 1,96

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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2. A university is interested in promoting graduates of its honors program by establishing that the mean GPA of these graduates exceeds 3.50. A sample of 36 honors students is taken and is found to have a mean GPA equal to 3.60. The population standard deviation is assumed to equal 0.40. At a 5% significance level, the decision is to A. reject Ho we can conclude that the mean GPA is significantly greater than 3,50 B. reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50 C. not reject Ho we can conclude that the mean GPA is significantly greater than 3,50 D. not reject Ho we cannot onclude that the mean GPA is significantly greater than 3.50 If the null hypothesis is rejected at a 1% significance level, then A. the null hypothesis will be rejected at a 5% significance level B. the alternative hypothesis will be rejected at a 5% significance level C. the null hypothesis will not be rejected at a 5% significance level D. the alternative hypothesis will not be rejected at a 5% significance level 3. Vermont-based Green Mountain Coffee Roasters dominates the market for single-serve coffee in the United States, with its subsidiary Keurig accounting for approximately 70% of sales ("Rivals Try to Loosen Keurig's Grip on Single-Serve Coffee Market," Chicago Tribune, February 26). But Keurig's patent on K-cups, the plastic pods used to brew the coffee, is expected to expire this year, allowing other companies to betteisompete. Suppose a potential competitor has been conducting blind taste tests on its blend and finds that 47% of consumers strongly prefer its French Roast to that of Green Mountain Coffee Roasters, After tweaking its recipe, the competitor conducts a test with 144 tasters, of which 72 prefer its blend. The competitor daims that its new blend is preferred by more than 47% of consumers to Green Mountain Coffee roasters' French Roast. What is the value of the appropriate test statistic to test this daim A, t = 0,721 B. z 0.721 C. t43 = 1,96 D. z 1,96 4.
Transcribed Image Text:2. A university is interested in promoting graduates of its honors program by establishing that the mean GPA of these graduates exceeds 3.50. A sample of 36 honors students is taken and is found to have a mean GPA equal to 3.60. The population standard deviation is assumed to equal 0.40. At a 5% significance level, the decision is to A. reject Ho we can conclude that the mean GPA is significantly greater than 3,50 B. reject Ho we cannot conclude that the mean GPA is significantly greater than 3.50 C. not reject Ho we can conclude that the mean GPA is significantly greater than 3,50 D. not reject Ho we cannot onclude that the mean GPA is significantly greater than 3.50 If the null hypothesis is rejected at a 1% significance level, then A. the null hypothesis will be rejected at a 5% significance level B. the alternative hypothesis will be rejected at a 5% significance level C. the null hypothesis will not be rejected at a 5% significance level D. the alternative hypothesis will not be rejected at a 5% significance level 3. Vermont-based Green Mountain Coffee Roasters dominates the market for single-serve coffee in the United States, with its subsidiary Keurig accounting for approximately 70% of sales ("Rivals Try to Loosen Keurig's Grip on Single-Serve Coffee Market," Chicago Tribune, February 26). But Keurig's patent on K-cups, the plastic pods used to brew the coffee, is expected to expire this year, allowing other companies to betteisompete. Suppose a potential competitor has been conducting blind taste tests on its blend and finds that 47% of consumers strongly prefer its French Roast to that of Green Mountain Coffee Roasters, After tweaking its recipe, the competitor conducts a test with 144 tasters, of which 72 prefer its blend. The competitor daims that its new blend is preferred by more than 47% of consumers to Green Mountain Coffee roasters' French Roast. What is the value of the appropriate test statistic to test this daim A, t = 0,721 B. z 0.721 C. t43 = 1,96 D. z 1,96 4.
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