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Years to Complete a Graduate Program: The average number of years a person takes to complete a graduate degree program is 3. The standard deviation is 4 months. Assume the variable is normally distributed. If an individual enrolls in the program, find the probability that it will take:
a. More than 4 years to complete the program:
b. Less than 3 years to complete the program:
c. Between 3.8 and 4.5 years to complete the program:
d. Between 2.5 and 3.1 years to complete the program
Joe Mauer of the Minnesota Twins had the highest batting average in the 2009 Major League Baseball season. His average was .461. So assume the probability of getting a hit is .461 for each time he batted. In a particular game, assume he batted fou..
To find out the prior probability, conditional probability and posterior probability. Calculate the posterior probability that the bid will be successful given a request for additional information.
What statistical procedure was used to analyze data in study B?
a. How many of the individuals selected in your sample are female? b. How is the stratified sample different from the SRS?
Using the original data, test at the 5% significance level that the population standard deviation of studying times is greater than 4 hours.
The random variable x is known to be uniformly distributed between 70 and 90. The probability of x having a value between 80 to 95 is
Report descriptive statistics, assumptions tests, effect sizes (partial eta) as well as tests of statistical significance.
Describe what the researcher must do if one of the requirements is not met and give illustrations.
Each party's position must be statistically sound. Include as suitable graphs, computations, and statistical tests.
Do the data from this sample provide evidence for a significant increase in REM activity during exams? Use a one-tailed test with _ = .01. B.) Compute Cohen's d to estimate the size of the effect.
Determine what analysis would you do on each problem (i.e., one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
What was the highest score earned on the exam? According to Chebyshev's Theorem, how many students scored between 42 and 74?
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