Paired t-test Execution 1. For this question use the following values: n = 13, s

Question

Paired t-test Execution

1. For this question use the following values: n = 13,sD = 1.20, and d = -1.01.Compute the upper limit of the 93% confidence interval on the difference between population means.

A) -0.955

B) -0.787

C) -0.507

D) -0.434

E) -0.348

F) -0.090

G) 0.044

H) 0.103

I) 0.132

J) 0.690

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2. For this question use the following values: n = 14,sD = 1.00, andd = 0.52.Compute the upper limit of the 93% confidence interval on the difference between population means.

A) -2.440

B) -2.131

C) -1.765

D) -0.865

E) -0.818

F) 0.652

G) 1.048

H) 1.218

I) 1.422

J) 1.533

Explanation / Answer

1)

n = 13,sD = 1.20, and d = -1.01.

the upper limit of the 93% confidence interval

= d + t *s/sqrt(n)

t = P(t < t*) = 0.965

df =n-1 = 12

here t = 1.989

hence upper limit =

(-1.01 +1.989*1.2/sqrt(13))

= -0.34802

option E) -0.348 is correct

2) : n = 14,sD = 1.00, and d = 0.52.

the upper limit of the 93% confidence interval

= d + t *s/sqrt(n)

t = P(t < t*) = 0.965

df =n-1 = 13

here t = 1.974

the upper limit of the 93% confidence interval

=(0.52 +1.974*1/sqrt(14))

=1.047573

G) 1.048 is correct

=1.067489

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