a) Carry out a test of Ho: - 42 = 5,000 against Ha: H1- P2> 5,000 at level of significance 0.01 using the following data: n = 45, nz = 45, x1 = 42,500, x2 = 36,800, s1 = 2200, s2 = 1500 %3D (b) Compute a 99% confidence interval for µ – Hs using the information given in part (a) above.

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a) Carry out a test of Ho: 1- Mz
significance 0.01 using the following data:
n = 45, n, = 45, x = 42,500, x, = 36,800, s, = 2200, s,
2 =
5,000 against Hạ: H1 - Pz > 5,000 at level of
= 1500
%3D
%3D
(b) Compute a 99% confidence interval for e
(a) above.
pz using the information given in part
Transcribed Image Text:a) Carry out a test of Ho: 1- Mz significance 0.01 using the following data: n = 45, n, = 45, x = 42,500, x, = 36,800, s, = 2200, s, 2 = 5,000 against Hạ: H1 - Pz > 5,000 at level of = 1500 %3D %3D (b) Compute a 99% confidence interval for e (a) above. pz using the information given in part
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