A researcher believes that maximum security inmates have a more lengthy arrest record than minimum security inmates.

15. A researcher believes that maximum security inmates have a more lengthy arrest record than minimum security inmates. She collects a sample of 25 inmates from the minimum security prison and 32 inmates from the maximum security prison and computes the following data from the samples:

Mean Standard Deviation

Minimum: 5.8 2.7

Maximum: 6.2 1.9

Calculate the 95% CI for each group. Based on these data, is the researcher correct that maximum security inmates have a longer arrest records than minimum security inmates? Why or why not?

16. Assume the data in question #5 were population parameters (m and s) and not sample statistics. Suppose the researcher draws at random one minimum security inmate and one maximum security inmate. Both inmates report having 7 prior arrests. Which inmate is more dissimilar from the population mean from which they were drawn? Why?

Expert Solution

orchestra answered 2 years ago

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