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Assume that the average age ofoffenders at prison admissions in the state of Florida is 30. Use the data to perform a hypothesis test to

  1. Assume that the average age ofoffenders at prison admissions in the state of Florida is 30. Use the data to perform a hypothesis test to determine if the average age of offenders at prison admissions in your sample is significantly different from the average age in the offender population in Florida. The variable that measures the average age of offenders at prison admission is AGEADMIT. Use a .05 level of statistical significance. Run the one-sample t-test inExcel. In your summary, please discuss the null hypothesis, alternative hypothesis, the result of this hypothesis test, and interpret the result.

  1. Assume that the average length ofjail in pretrial in the state of Florida is 90 days. Use the data to perform a hypothesis test to determine if the average length of jail in pretrial in your sample is significantly different from the average length of jail in pretrial in Florida. The variable that measures the average length of jail in pretrial is JAILCREDIT. Use a .05 level of statistical significance. Run the one-sample t-test inExcel. In your summary, please discuss the null hypothesis, alternative hypothesis, the result of this hypothesis test, and interpret the result.

  1. Conduct an independent sample t-test (alpha= .05) inExcel to determine whether there is a significant difference in the length of jail in pretrial between White and Black offenders. For this t-test, assume that the variances of the two groups are unequal. In your summary, please discuss the null hypothesis, alternative hypothesis, the result of this hypothesis test, and interpret the result.
Variable Name Type of Variable Variable Label Value Labels Values Explanation
County Character County of Sentence NA Literal name of county
Sex Character Sex of Offender NA Literal name of sex-Male, Female
Race Character Race of Offender NA Literal name of race-White, Black, Chinese, Nat. Amer. Hispanic, All Others, Unknown
Sentence Numeric Length of Sentence in Months NA

Sentence length in months, except

9999998 = Life, 9999999 = Death

Offense Numeric Primary Offense 1 = Murder
2 = Sex Offense
3 = Robbery
4 = Other Violent
5 = Burglary
6 = Property
7 = Drugs
8 = Weapons
9 = Other Crimes
JailCredit Numeric Length in Jail Pretrial NA In Days
AgeAdmit Numeric Age of Offender at Prison Admissions NA In Years

Excel link for data: https://arizonastateu-my.sharepoint.com/:x:/g/personal/gsmoral1_sundevils_asu_edu/EbuuHsFtjAVAuD7sj4K0YfIB2FpU6GboA1grf-UF11OdYA?e=2dwBIe

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