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1.You wish to know the average GPA of MBA students at Whatsamatta U. Compute the 95% confidence interval of the mean using the sample of 200 students. Describe your findings.

2.You wish to know the proportion of MBA students that are majoring in Finance. Compute the 95% confidence interval of the proportion using the sample of 200 students. Describe your findings.

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3.You wish to learn the average age of an MBA student within 2 years and with 99% confidence. How large of a sample should you get?

4.You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get?

Students

IDGenderMajorEmployAgeMBA_GPABS GPAHrs_StudyingWorks FT
11No MajorUnemployed392.823.0530Variable descriptions
21No MajorFull Time553.493.4571Gender = 0 (male), 1 (female)
31No MajorPart Time433.283.570Major = student’s major
41No MajorFull Time563.253.5571Age = age of student in years
51No MajorFull Time383.263.361MBA_GPA = overall GPA in the MBA program
61No MajorUnemployed542.873.0540BS_GPA = overall GPA in the BS program
71No MajorFull Time303.163.3561Hrs_Studying = average hours studied per week
81No MajorFull Time373.43.3561Works FT = 0 (No), 1 (Yes)
91No MajorPart Time382.843.0530
101No MajorFull Time423.723.771
111No MajorPart Time523.223.570
121No MajorFull Time353.443.5571
131No MajorFull Time373.653.981
141No MajorFull Time533.023.361
151No MajorPart Time513.033.2560
161No MajorFull Time403.83.881
171No MajorFull Time333.233.571
181No MajorPart Time533.263.570
191No MajorFull Time433.533.7581
201No MajorUnemployed353.753.980
211No MajorFull Time573.153.261
221No MajorPart Time323.663.7580
231No MajorFull Time593.363.4571
241No MajorFull Time483.793.8581
251No MajorPart Time342.853.0530
261No MajorFull Time533.743.981
271No MajorPart Time353.233.2560
281No MajorUnemployed383.523.770
291No MajorPart Time373.323.4570
301No MajorFull Time462.893.141
311No MajorFull Time442.833.0531
321No MajorUnemployed312.933.150
331No MajorFull Time513.713.881
341No MajorFull Time473.473.7581
351No MajorPart Time563.523.6570
361FinancePart Time422.833.0530
371FinanceFull Time443.643.5571
381FinanceUnemployed542.963.140
391FinanceFull Time513.593.881
401FinancePart Time423.333.5570
411FinanceFull Time453.383.671
421FinanceFull Time553.443.3561
431FinanceFull Time473.313.4571
441FinanceUnemployed433.033.2560
451FinanceFull Time573.263.471
461FinanceFull Time363.043.2561
471FinancePart Time582.983.150
481FinanceFull Time462.83.0521
491FinanceFull Time533.753.7581
501FinanceFull Time593.643.6571
511FinanceFull Time493.653.881
521FinanceFull Time343.183.361
531FinanceFull Time463.443.471
541FinanceUnemployed463.063.1560
551FinanceFull Time333.513.7581
561FinancePart Time563.333.470
571FinanceFull Time392.813.0521
581FinanceFull Time513.643.881
591FinancePart Time553.053.470
601FinanceFull Time382.853.0531
611MarketingFull Time333.563.671
621MarketingFull Time342.923.151
631MarketingFull Time313.353.571
641MarketingFull Time373.463.3561
651MarketingFull Time463.593.7581
661MarketingUnemployed313.113.260
671MarketingFull Time473.653.781
681MarketingPart Time543.173.570
691MarketingFull Time522.973.151
701MarketingPart Time433.773.980
711LeadershipFull Time443.213.261
721LeadershipPart Time343.173.1560
731LeadershipFull Time593.653.6571
741LeadershipFull Time452.943.151
751LeadershipFull Time303.533.781
761LeadershipFull Time323.653.671
771LeadershipFull Time323.613.781
781LeadershipFull Time403.73.981
791LeadershipFull Time482.913.151
801LeadershipUnemployed513.093.2560
811LeadershipFull Time303.773.9591
821LeadershipFull Time313.793.881
831LeadershipFull Time353.593.671
841LeadershipFull Time333.383.571
851LeadershipFull Time353.573.571
861LeadershipFull Time312.973.151
871LeadershipFull Time383.443.6571
881LeadershipPart Time463.643.5570
891LeadershipFull Time453.483.471
901LeadershipFull Time592.993.151
911LeadershipFull Time583.733.881
921LeadershipFull Time462.913.0541
931LeadershipFull Time353.783.9591
941LeadershipPart Time533.43.470
951LeadershipFull Time313.133.1561
961LeadershipFull Time503.143.2561
971LeadershipFull Time383.243.361
981LeadershipFull Time503.563.571
991LeadershipFull Time483.163.2561
1001LeadershipFull Time533.533.5571
1010No MajorUnemployed533.013.1560
1020LeadershipFull Time303.33.3561
1030No MajorPart Time323.623.670
1040LeadershipFull Time423.213.471
1050LeadershipFull Time563.393.471
1060No MajorFull Time463.653.881
1070LeadershipFull Time493.473.781
1080No MajorPart Time323.443.670
1090No MajorFull Time363.883.9591
1100LeadershipFull Time423.833.9591
1110No MajorPart Time373.533.670
1120No MajorFull Time313.223.361
1130No MajorFull Time313.563.881
1140No MajorUnemployed423.23.2560
1150No MajorFull Time393.173.361
1160No MajorFull Time473.413.671
1170No MajorPart Time283.563.780
1180No MajorUnemployed283.343.670
1190No MajorFull Time523.443.671
1200No MajorPart Time353.763.880
1210FinanceFull Time383.553.4571
1220FinanceFull Time443.883.981
1230FinancePart Time383.313.4570
1240FinanceFull Time523.093.1561
1250FinanceUnemployed533.82490
1260FinancePart Time533.013.260
1270FinanceFull Time313.663.8581
1280FinancePart Time473.643.780
1290FinanceFull Time513.593.6571
1300FinanceUnemployed373.493.5570
1310FinancePart Time463.133.260
1320FinanceFull Time483.833.981
1330FinanceFull Time543.043.1561
1340FinanceFull Time483.914101
1350FinanceFull Time363.563.781
1360FinanceUnemployed393.96490
1370FinanceFull Time283.463.471
1380FinancePart Time453.223.1560
1390FinanceFull Time313.273.261
1400FinanceFull Time473.433.4571
1410FinancePart Time353.853.9590
1420FinanceFull Time523.893.981
1430FinancePart Time523.373.4570
1440FinanceUnemployed553.323.360
1450FinanceFull Time523.543.5571
1460FinancePart Time463.83.980
1470FinanceFull Time313.743.8581
1480FinanceFull Time333.173.4571
1490FinancePart Time453.273.5570
1500FinanceFull Time503.323.361
1510MarketingPart Time333.563.4570
1520MarketingFull Time373.95491
1530MarketingUnemployed333.563.7580
1540MarketingFull Time463.793.7581
1550MarketingPart Time553.93490
1560MarketingFull Time303.793.8581
1570MarketingFull Time513.713.8581
1580MarketingPart Time353.053.3560
1590MarketingUnemployed403.223.260
1600MarketingPart Time293.853.9590
1610MarketingFull Time523.823.9591
1620MarketingFull Time273.233.9591
1630MarketingFull Time513.563.6571
1640MarketingPart Time563.533.6570
1650MarketingFull Time353.62491
1660LeadershipFull Time463.83.9591
1670LeadershipPart Time393.473.3560
1680LeadershipFull Time313.643.6571
1690LeadershipFull Time523.033.1551
1700LeadershipUnemployed323.173.2560
1710LeadershipPart Time323.223.260
1720LeadershipFull Time443.924101
1730LeadershipFull Time433.823.9591
1740LeadershipPart Time383.263.5570
1750LeadershipFull Time543.83.8581
1760LeadershipFull Time273.23.261
1770LeadershipPart Time383.463.3560
1780LeadershipFull Time453.673.7581
1790LeadershipUnemployed483.063.470
1800LeadershipFull Time433.663.8581
1810LeadershipFull Time343.964101
1820LeadershipFull Time543.753.8581
1830LeadershipFull Time363.833.8581
1840LeadershipFull Time453.223.261
1850LeadershipUnemployed283.363.3560
1860LeadershipFull Time373.213.2561
1870LeadershipFull Time273.023.1551
1880LeadershipFull Time313.994101
1890LeadershipUnemployed453.073.1560
1900LeadershipFull Time483.653.6571
1910LeadershipFull Time503.673.8581
1920LeadershipFull Time323.063.3561
1930LeadershipUnemployed333.983.780
1940LeadershipFull Time493.934101
1950LeadershipUnemployed273.413.360
1960LeadershipPart Time283.433.570
1970LeadershipFull Time363.73.6571
1980LeadershipFull Time353.763.7581
1990LeadershipPart Time473.93.980
2000LeadershipFull Time333.233.361

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