Question

Let’s say we believe that desk-officers and patrol-officers spend different get differing numbers of overtime hours because of their different assignments. We take a small sample of each group to determine if they are truly different. Conduct a two mean hypothesis test to ascertain whether there is a difference between desk-officers and patrol-officers regarding overtime. Use a significance level of α = 0.01 and the information below.

Desk Officers	Patrol Officers
n = 4	n = 7
s1 = 2.9	s2 = 2.0
x̄1=3	x̄2=5

What is your obtained t?

Group of answer choices

-1.011

-1.364

-2.131

-1.588

Answer 1

The statistical software output for this problem is:

Hence,

Obtained t = -1.364

Option B is correct.