working needed

Question 3: 12 sets of identical twins were enrolled in a study to measure the effect of home environment on certain social attitudes. One twin in each set was randomly assigned to a foster environment or a home environment. The twin assign to the foster environment went to live with a low income family on state welfare for a period of 1 year. At the end of the year, an attitudinal survey was administered. Their result follow: ID 1 2 3 4 5 6 7 8 9 10 11 12 Foster 83 75 72 76 78 80 72 81 70 78 77 71 Home 65 67 75 77 69 65 73 78 70 72 73 79 Perform a dependent samples t-test (paired t-test) to examine if the hypothesis that living in the foster environment leads to higher scores on the attitude survey. Use a 5% significant level. a) State the null hypothesis and the alternative hypothesis b) Compute the value of the test statistic. (2 dp) Test statistic t = [ ] c) State the degree of freedom? df = d) Look up the critical value to to= e) Reject/Not reject Ho. There is [ ] evidence to indicate that living in the foster environment leads to higher scores on the attitudinal survey