Question

Consider using a z test to test H0: p = 0.2. Determine the P-value in each of the following situations. (Round your answers to four decimal places.) (a) Ha: p > 0.2, z = 1.40 (b) Ha: p < 0.2, z = -2.72 (c) Ha: p ? 0.2, z = -2.72 (d) Ha: p < 0.2, z = 0.20

          Consider using a z test to test H0: p = 0.2. Determine the P-value in each of the following situations. (Round your answers to four decimal places.)
(a) Ha: p > 0.2, z = 1.40
(b) Ha: p < 0.2, z = -2.72
(c) Ha: p ? 0.2, z = -2.72
(d) Ha: p < 0.2, z = 0.20

Consider using a z test to test H0: p = 0.2. Determine the P-value in each of the following situations. (Round your answers to four decimal places.)
(a) Ha: p > 0.2, z = 1.40
(b) Ha: p < 0.2, z = -2.72
(c) Ha: p ? 0.2, z = -2.72
(d) Ha: p < 0.2, z = 0.20

Added by Tom-S Y.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Adi S

06/16/2023

Step 1

The formula for the z-test statistic is: z = (p̂ - p) / √(p(1-p)/n) where p̂ is the sample proportion, p is the hypothesized population proportion (0.2 in this case), n is the sample size, and √(p(1-p)/n) is the standard error of the proportion. (a) Ha: P > Show more…

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Consider using a z test to test H0: p = 0.2. Determine the P-value in each of the following situations. (Round your answers to four decimal places.) (a) Ha: p > 0.2, z = 1.40 (b) Ha: p < 0.2, z = -2.72 (c) Ha: p ≠ 0.2, z = -2.72 (d) Ha: p < 0.2, z = 0.20