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Suppose that a random variable is normally distributed with mean (u) and variance (sigma)2 and we draw a random sample of 5 observations from this distribution. What is the joint probability density function of the sample?
If the value of y is 11 thousands, find the probability that these tires will last at most 15,227 miles. You MUST write your answers with 3 decimal places.
In a classroom with 24 students, 7 students are wearing jeans, 4 are wearing shorts, 8 are wearing skirts, and the rest are wearing leggings.
Given a binomial random variable with n = 60 and p = 0.36 find the probability of at least 10 but no more than 28 successes to three decimal places.
Find a 99% confidence interval for the true proportion of graduate business students who have a job offer for each degree program.
Ashley is a hard-core runner. She and all her friends prefer Powerade Ion4 to Gatorade. Explain why Ashley's experience is not good evidence that most young people prefer Powerade to Gatorade.
From the calculator manufacturer?s point of view, which type of error would be considered more serious and explain why? From the printed circuit supplier?s point of view, which type of error would be considered more serious and explain why?
How many degrees of freedom are associated with this SSD? As k increases, what happens to the degrees of freedom? What happens to SSD? What happens to MSD = SSD/df(SSD)?
You obtain the data shown below for 30 girls with anorexia who were treated with psychodynamic therapy. Using the data below and the data above compare the outcomes for CBT and psychodynamic therapy.
Utilize statistical software to conduct data analysis
Find the prob. that they get such a family and the boy is the youngest
List and describe the three assumptions of ANOVA. When should researchers use different hypothesis tests for independent and related samples? What is the difference between a one-way-ANOVA and a two-way-ANOVA?
Construct a runs chart for the empty weight. Include a line at the average empty weight for reference and comment on the chart. Construct a runs chart for the full weight. Include a line at the average full weight for reference and comment on the ..
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