6 Questions
What is the mean of the distribution of 300 people?
130
What is the standard deviation of the distribution of 300 people?
10
For the range between 130.5 - 142.5 in the distribution of 300 people, what is the Z value?
2.25
For the range between 130.5 - 142.5 in the distribution of 300 people, what percentage of Z value would it represent?
95%
How many people are estimated to be between 130.5 - 142.5 in the distribution of 300 people?
45
In order to find a sample with a 95% confidence interval and a tolerance of 5%, how many people should be included if the influenza rate is 0.35 in a population?
1990
Test your knowledge of statistics concepts such as mean, variance, standard deviation, Z value, and T value. Calculate the measures of central tendency and dispersion for different class intervals. Solve problems involving Z value and T value calculations.
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