Fundamentals of Statistics and Probability Theory: A Tutorial Approach Vol 2 by Howard Dachslager

Author:Howard Dachslager [Dachslager, Howard]
Language: eng
Format: azw3, epub
Published: 2021-01-13T16:00:00+00:00

Step 3: We use the formula:

c* = μd + zσd = 0 +zσd = zσd = z(0.91).

Step 4: Since α = 0.05, and we have a two-sided test, we look up the z value from the area of the normal distribution 0.5 - 0.025 = 0.475 and find z = 1.96.

Step 5: c* = zσd = 1.96(0.91) ≈ 1.78 pounds

Step 6: We restate the decision rule:

D.R.: If then reject H a ; otherwise reject H 0 and accept H a .

➤(c) .

We use the decision rule in (b) to find the probability of a Type II error if μd = 2 pounds.

fig. 7

Step 1: We use formula:

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