Normal Distribution
Not what you're looking for?
Nurses saleries are Normally distributed with mean of 35,000 and standard deviation$1700.
A. What is the probability that a nurse earn more than $36,000?
B. What is the probality that a group of 10 nurses have mean salary greater than $36,000?
c. What salary does a nurse need to earn to have a salary in the top 25% of nurses' salaries?
Purchase this Solution
Solution Summary
Nurses salaries are Normally distributed with mean of $35,000 and standard deviation $1700.
A. What is the probability that a nurse earn more than $36,000?
B. What is the probality that a group of 10 nurses have mean salary greater than $36,000?
c. What salary does a nurse need to earn to have a salary in the top 25% of nurses' salaries?
Solution Preview
A) first, calculate the z value by z = (X-M)/SD = (36000-35000)/1700= 0.588
<br>then Pr(X>36000) = Pr(z>0.588) = 1- Pr(z<0.588) = 1-0.722 =0.278
<br>z value is found from a z-table.
<br>Therefore, the probability that a nurse earn more than $36,000 is ...
Purchase this Solution
Free BrainMass Quizzes
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
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.
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
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.