Reference no: EM13902134

Question 1- Glaucoma is a leading cause of blindness in the United States. N. Ehlers measured the cornel thickness of eight patients who had glaucoma in one eye but not in the other. The following are the data on corneal thickness, in microns.

Patient	Normal	Glaucoma
1	484	488
2	478	478
3	492	480
4	444	426
5	436	440
6	498	410
7	464	458
8	476	460

At the 10 % significance level, do the data provide sufficient evidence to that mean corneal thickness is greater in normal eyes than in eyes with glaucoma? (S_d = 10.74)

Question 2- Use the one-proportion z-test and z-interval procedure to conduct the required hypothesis and obtain the specified confidence interval.

(a) x = 8, n = 40, 95% level.

X = 35, n = 50, H₀: p = 0.65, Ha: p>0.65, a = 0.10.