this… is… business statistics jeopardy!

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This… Is… Business Statistics Jeopardy!

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This… Is… Business Statistics Jeopardy!. Rules. Teams of five or less students. Choose team name… Write up four answer cards: A, B, C and D Answer when prompted. Winning team’s players earn a small bonus on Exam 3. Question 1. - PowerPoint PPT Presentation

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This Is Business Statistics Jeopardy!RulesTeams of five or less students.Choose team nameWrite up four answer cards: A, B, C and DAnswer when prompted.Winning teams players earn a small bonus on Exam 3.Question 1A two-tailed hypothesis test with = 3% has what critical value(s)?-1.881.88 1.88 2.17Question 1A two-tailed hypothesis test with = 3% has what critical value(s)?-1.881.88 1.88 2.17Question 2If a jury convicts an innocent defendant, this is an example of:A Type error.A Type error.A Type 1 error.A Type 2 error.Question 2If a jury convicts an innocent defendant, this is an example of:A Type error.A Type error.A Type 1 error.A Type 2 error.

Question 3For the HT problem on the board, the zstat = 0.921.822.053.40

Question 3For the HT problem on the board, the zstat = 0.921.822.053.40

Question 4For the problem on the board, the correct interpretation of the p-value is:There is only a 3.4% chance that the alternative hypothesis is true.There is only a 3.4% chance that the null hypothesis is true.There is only a 3.4% chance that we would get our data (or worse) assuming the alternative is true.There is only a 3.4% chance that we would get our data (or worse) assuming the null is true.Question 4For the problem on the board, the correct interpretation of the p-value is:There is only a 3.4% chance that the alternative hypothesis is true.There is only a 3.4% chance that the null hypothesis is true.There is only a 3.4% chance that we would get our data (or worse) assuming the alternative is true.There is only a 3.4% chance that we would get our data (or worse) assuming the null is true.

Question 5For the problem on the board, the final answer is:Accept H0, the population mean is about 1000.Accept H0, the sample mean is about 1000.Reject H0, the population mean is greater than 1000.Reject H0, the sample mean is greater than 1000.Question 5For the problem on the board, the final answer is:Accept H0, the population mean is about 1000.Accept H0, the sample mean is about 1000.Reject H0, the population mean is greater than 1000.Reject H0, the sample mean is greater than 1000.

Question 6Which statement is FALSE:A small p-value is evidence against the null.A large p-value supports the null.A critical value close to zero is evidence against the null.A critical value close to zero supports the null.Question 6Which statement is FALSE:A small p-value is evidence against the null.A large p-value supports the null.A critical value close to zero is evidence against the null.A critical value close to zero supports the null.

Daily Double!http://www.youtube.com/watch?v=E5LTzcDevrkYou can bet up to half your current score.Leading team tells bet firstIf you are wrong, you lose the points.8 questions remaining.

CategoryT-PainQuestion 7: Daily DoubleFor a left-tailed t-test (Ha: < 100) with n = 15 and = 5%, the correct tcrit is:1.7611.7532.145None of the above.

Question 7For a left-tailed t-test (Ha: < 100) with n = 15 and = 5%, the correct tcrit is:1.7611.7532.145None of the above. tcrit = -1.761.

Question 8Do FLC students spend more than $700 annually on textbooks? Assume that you survey 50 students and find that the average book cost is $817 with sd $223. At = 5%, is there significant statistical evidence that, on average, FLC students spend more than $700 annually?>, z, p, z, Question 8Do FLC students spend more than $700 annually on textbooks? Assume that you survey 50 students and find that the average book cost is $817 with sd $223. At = 5%, is there significant statistical evidence that, on average, FLC students spend more than $700 annually?>, z, p, z,

Question 9A population proportion is claimed to be 75%. Your sample has n = 60 and x = 49. Is the claim right or wrong?What is the sample proportion?23%75%82%119%Question 9A population proportion is claimed to be 75%. Your sample has n = 60 and x = 49. Is the claim right or wrong?What is the sample proportion?23%75%82%119%

Question 10A population proportion is claimed to be 75%. Your sample has n = 60 and x = 49. Is the claim right or wrong?Which is true:The p-value absolutely rejects the nullThe p-value rejects the null, but its close.The p-value is plausible.The p-value absolutely confirms the null.Question 10A population proportion is claimed to be 75%. Your sample has n = 60 and x = 47. Is the claim right or wrong?Which is true:The p-value absolutely rejects the nullThe p-value rejects the null, but its close.The p-value is plausible.The p-value absolutely confirms the null.

Question 11On a Yes or No question, 65% of men (out of 40) answered Yes and 82% of women (out of 50) answered Yes. Is the percentage of women who answered Yes significantly higher ( = 5%)? No, accept the null, theyre the same.Yes, accept the null, the proportion is higher.No, reject the null, theyre the same.Yes, reject the null, the proportion is higher.

Question 11On a Yes or No question, 65% of men (out of 40) answered Yes and 82% of women (out of 50) answered Yes. Is the percentage of women who answered Yes significantly higher ( = 5%)? No, accept the null, theyre the same.Yes, accept the null, the proportion is higher.No, reject the null, theyre the same.Yes, reject the null, the proportion is higher.

Daily Double!http://www.youtube.com/watch?v=E5LTzcDevrkYou can bet your entire current score!Leading team tells bet firstIf you are wrong, you lose the points.4 questions remaining.

CategoryIts All Greek to MeQuestion 12: Daily DoubleH0: 1 = 2p-value = 17%Ha: 1 2zstat = -1.37 = ???zcrit = 2.33

= 1% = 2% = 5% = 10%

Question 12H0: 1 = 2p-value = 17%Ha: 1 2zstat = -1.37 = ???zcrit = 2.33

= 1% = 2% = 5% = 10%

Question 13For an ANOVA test, which alternative hypothesis is not correct:Not all the means are the same.At least one mean is different.All the means are different.The means are not all the same.

Question 13For an ANOVA test, which alternative hypothesis is not correct:Not all the means are the same.At least one mean is different.All the means are different.The means are not all the same.

Question 14H0: = 600p-value = ???Ha: > 600zstat = 2.65 = 5%zcrit = 1.65

p-value = 0%p-value = 0.4%p-value = 4%p-value = 5%Question 14 H0: = 600p-value = ???Ha: > 600zstat = 2.65 = 5%zcrit = 1.65

p-value = 0%p-value = 0.4%p-value = 4%p-value = 5%

Question 15Assume that p-value = 2.3 * 10-8. Which statement is true?The null hypothesis is absolutely false.The null hypothesis is very, very likely false.The null hypothesis is very, very likely true.The null hypothesis is absolutely true.Question 15Assume that p-value = 2.3 * 10-8. Which statement is true?The null hypothesis is absolutely false.The null hypothesis is very, very likely false.The null hypothesis is very, very likely true.The null hypothesis is absolutely true.