can you please solve all parts

Suppose independent random samples of 16 unionized women and 18 nonunionized women in manufacturing have been selected and the following hourly wage rates are found. Union Worker 22.40 16.50 18.50 16.70 19.80 14.05 17.00 18.90 16.20 14.30 20.00 17.20 16.10 17.30 19.10 12.30 Nonunion Worker 17.60 15.90 13.90 14.40 19.20 14.50 16.60 11.85 15.00 16.45 17.65 14.20 15.00 15.30 17.55 17.00 13.30 15.10 ______ a. What is the point estimate of the difference between hourly wages for the two populations? b. Assume the populations have equal variances. What is the pooled estimate of the population variances? c. Develop a 90% condence interval estimate of the difference between the two populations? d. Assume the populations have equal variances, use alpha = .01 and test for a difference in the means