In each of the cases below, find the appropiate confidence bound: (Calculations

Question

In each of the cases below, find the appropiate confidence bound: (Calculations with TI 84-Plus and instructions)

(a) 90% Lower Bound for mean with n = 35, sample standard deviation = 1.5, sample mean = 50.

(b) 95% Upper Bound for mean with n = 7, sample standard deviation = 1.2, sample mean = 0.

(c) 99% Lower Bound for mean with n = 28, population standard deviation = 0.2, sample mean = 2.

(d) 99.9% Upper Bound for mean with n = 45, sample proportion = 0.6.

(e) 99.5% Lower Bound for mean with n = 21, sample standard deviation = 4.2, sample mean = 5.

Explanation / Answer

49.571

1.1098

1.8953

.84031

2,1099

Instructions: STAT, Tests 8 for t interval A for z proportion intrval.

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