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- 1. Multiple ChoiceWhat is not known in t distribution?population meanpopulation standard deviationsample meansample size
- 2. Multiple ChoiceWhat should the sample size be to use z distribution if you know the data is normally distributed?greater than 30less than 30greater than or equal to 30any number
- 3. Multiple ChoiceWhat should the sample size be to use t distribution?greater than 30less than 30greater than or equal to 30less than or equal to 30
- 4. Multiple ChoiceWhat should the sample size be to use z distribution?greater than 30less than 30greater than or equal to 30less than or equal to 30
- 5. Multiple ChoiceWhat should the sample size be to use z distribution if you know that the data is normally distributed?greater than 30less than 30greater than or equal to 30any number
- 6. Multiple ChoiceYou know the population SD and the sample mean, and you know the data is normally distributed, you should use_____________ build a confidence interval for the population mean, if your sample size is 12t distributionz distributioneither distributionnone of these
- 7. Multiple ChoiceYou know the population SD and the sample mean, you should use_____________ build a confidence interval for the population mean, if your sample size is 12t distributionz distributioneither distributionnone of these
- 8. Multiple ChoiceYou know the population SD and the sample mean, you should use_____________ build a confidence interval for the population mean, if your sample size is 32t distributionz distributioneither distributionnone of these
- 9. Multiple ChoiceWhat should the sample size be to use t distribution if you know the data is normally distributed?greater than 30less than 30greater than or equal to 30any number
- 10. Multiple ChoiceYou know the sample SD and the sample mean, you should use_____________ build a confidence interval for the population mean, if your sample size is 12t distributionz distributioneither distributionnone of these
- 11. Multiple ChoiceYou know the sample SD and the sample mean, and you know the data is normally distributed, you should use_____________ build a confidence interval for the population mean, if your sample size is 12t distributionz distributioneither distributionnone of these
- 12. Multiple ChoiceWhen will the bell curves for t and z distribution look the same?the smaller the sample sizethe larger the sample sizewhen the sample sizes are the samewhen the sample size is one
- 13. Multiple ChoiceYou are building a confidence interval, n is 32, your sample SD is 10, and you want to build a 95% confidence interval, then which of the statements is trueCV = 1.96 E =3.465CV = 2.262 E = 3.999CV = 2.228 E =3.939none of these
- 14. Multiple ChoiceYou are building a confidence interval, n is 32, your population SD is 10, and you want to build a 95% confidence interval, then which of the statements is trueCV = 1.96 E =3.465CV = 2.262 E = 3.999CV = 2.228 E =3.939none of these
- 15. Multiple ChoiceYou are using t distribution to build a confidence interval and you want to know when you need to use the graphing calculator versus when you need to use the chart? Which of the following cannot be found using the t chart that you were given in class?n = 12, CL =90%n = 12, CL = 80%n = 60, CL = 90%n= 71, CL = 98%
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