Question

For the next three questions use this information to calculate the values listed below the data set.

The following table shows the before and after effects of a policy change that increases the number of visits by caregivers to those homes with people needing assistance. Data were gathered for 6 months prior to the policy change (a time when visits were once per day in the morning) and after the policy change (visits increased from once per day to 2-3 times per day). The scores were from a modified life enthusiasm scale where higher scores indicated higher contentment. Do the data presented show an increase in contentment? Test at α=.01

Life Contentment Change
Participant #	Prior to Policy Change	Post Policy Change	D
1	3	6	-3
2	8	14	-6
3	4	8	-4
4	6	4	2
5	9	16	-7
6	2	7	-5
7	12	17	-5

What is(are) the critical value(s) for this information? (Round to two decimal places, and if two tailed please put only the positive value)

Answer 1

Let us denote the difference

d = Post to Policy - Prior to Policy

So, there is sufficient evidence to support the claim that there is an increase in contentment.

ans-> The critical value is = 3.143