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The given data show the age distribution of top 14 doctors in emergency faculty of local hospital.
Age Frequency
35-39 240-44 245-49 150-54 355-59 460-64 2
Using the computational formula, calculate the Standard Deviation of doctors' ages
Write a brief summary of the distribution of life expectancy.
Testing for two Proportions - Is the difference between the averages statistically significant?
Founder of modern probability and statistics theory Cardano asserted that if one throws a die three times the chance that a given number will show at least once is 50 percent. This is now recognized as the wrong answer. Calculate, what is a probab..
Assume we have a population of scores with a mean of 975 and a standard deviation of 15. Assume that the distribution is normal. Provide answers to the following questions:
The population of IQ scores forms a normal distribution with mean of μ = 100 and a standard deviation of σ = 15. What is the probability of obtaining a sample mean greater than M = 105,
Suppose that you select a 50 families sample. Which is the form expected from the distribution of the average or median of the sample?
Identify the independent and dependent variables, and Construct a nominal, ordinal, and interval level measure for each independent and dependent variable.
What is the probability of getting someone who is in the 23-30 age brackets or whom smokes?
A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 20 hours, with a standard deviation of 5.5 hours
Do these results suggest that the racial makeup of the faculty members is different from that of the students? (Use the .05 significance level.) Use the five steps of hypothesis testing and explain your findings.
Determine the standard error of students that favoured the move.
What is the probability that a randomly selected tire will have a life of at least 30,000 miles?
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