Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a normal distribution with σ = 3.0%. A random sample of 10 bank stocks gave the following yields (in percents). 5.7 4.8 6.0 4.9 4.0 3.4 6.5 7.1 5.3 6.1 The sample mean is = 5.38%. Suppose that for the entire stock market, the mean dividend yield is μ = 4.6%. Do these data indicate that the dividend yield of all bank stocks is higher than 4.6%? Use α = 0.01. Compute the z value of the sample test statistic. (Enter a number. Round your answer to two decimal places.) (c) Find (or estimate) the P-value. (Enter a number. Round your answer to four decimal places.)
Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a normal distribution with σ = 3.0%. A random sample of 10 bank stocks gave the following yields (in percents). 5.7 4.8 6.0 4.9 4.0 3.4 6.5 7.1 5.3 6.1 The sample mean is = 5.38%. Suppose that for the entire stock market, the mean dividend yield is μ = 4.6%. Do these data indicate that the dividend yield of all bank stocks is higher than 4.6%? Use α = 0.01. Compute the z value of the sample test statistic. (Enter a number. Round your answer to two decimal places.) (c) Find (or estimate) the P-value. (Enter a number. Round your answer to four decimal places.)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a
- 5.7
- 4.8
- 6.0
- 4.9
- 4.0
- 3.4
- 6.5
- 7.1
- 5.3
- 6.1
The sample
Compute the z value of the sample test statistic. (Enter a number. Round your answer to two decimal places.)
(c)
Find (or estimate) the P-value. (Enter a number. Round your answer to four decimal places.)
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