Answer Q10.1.5 and Q10.2.1 stepwise please

10.1.5 An article in Industrial Engineer (September 2012)

reported on a study of potential sources of injury to equine

veterinarians conducted at a university veterinary hospital. Forces

on the hand were measured for several common activities that

veterinarians engage in when examining or treating horses. We

consider the forces on the hands for two tasks, lifting and using

ultrasound. Assume that both sample sizes are 6, the sample

mean force for lifting was 6.0 pounds with standard deviation

1.5 pounds, and the sample mean force for using ultrasound was

6.2 pounds with standard deviation 0.3 pounds (data read from

graphs in the article). Assume that the standard deviations are

known. Is there evidence to conclude that the two activities result

in significantly different forces on the hands?

10.2.1 Consider the following computer output. Two-Sample T-Test and CI Sample N Mean StDev SE Mean 12 10.94 1 . 26 0 . 36 16 12 . 15 1. 99 0 . 50 Difference = mu (1) - mu (2) Estimate for difference: -1. 210 95% CI for difference: (-2.560, 0. 140) T-test of difference = 0 (vs not =) : T-value = ? P-value = ? DF = ? Both use Pooled StDev = ? a. Fill in the missing values. Is this a one-sided or a two-sided test? Use lower and upper bounds for the P-value. b. What are your conclusions if a = 0.05? What if a = 0.01? c. This test was done assuming that the two population vari- ances were equal. Does this seem reasonable? d. Suppose that the hypothesis had been Ho : , = H, versus Ho: H1