Hypothesis Testing of Population Proportion: P-Value
Not what you're looking for?
Please see attachment for problem in proper format.
Suppose that a company CEO claims that more than ¾ of his employees carry a secondary health insurance. You decide to test his claim using a significance level of a = 0.02. A sample of 200 employees finds that 160 of them carry secondary health insurance. First, you set up your hypotheses as follows:
H0: p ≤ 0.75
H1: p > 0.75 (claim)
Then you compute your sample statistic, and get the following:
(see attached file for formulas)
Compute the probability of getting a sample statistic at least as extreme as z=1.63, and interpret this probability value. Remember that in a one-tailed test such as this, you do not need to multiply your p-value by two.
Choose one of the following:
a. The p-value is small enough to prove the claim
or,
b. The p-value is not small enough to prove the claim
Purchase this Solution
Solution Summary
The solution provides step by step method for the calculation of p-value. Formulas for the calculation and Interpretations of the results are also included.
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.