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You are visiting Las Vegas and would like to come home with more money than you arrived with. Use your knowledge of probability to answer the following questions: (Show all work, not just answers)
Perform the appropriate post hoc comparisons. What do you conclude about this relationship? What is the effect size in this study,
Derive the probability distribution for total losses under Option A. Once again remember that if a fire occurs, the loss will be $1,000.
To use instruments in a shared research lab you first have to ask the lab monitor. She will then walk into the lab to see if the instrument you want to use is available, and if it is, you get to use
In a survey of women in a certain country (ages 20-29), the mean height was 64.5 inches with a standard deviation of 2.91 inches answer the following question about the specified normal distribution
Compute the probability of selling less than 6 properties in one week.
A study of fill volumes is conducted at a food canning factory to determine the level of consistency between the two filling lines, A and B. A random sample of 11 cans taken from line A has a sampl
Create a drawing or plan for a 2 × 3 experimental design that would lend itself to a factorial ANOVA. Identify the independent and dependent variables
Using the Wilcoxon Rank Sum Test, analyze the following data for evidence that population B is different from population A.
An industrial psychologist wishes to study the effect of motivation on sales in a particular firm. 24 new salespersons are randomly divided into two groups of 12. One group is paid an hourly rate an
Do this exercise by hand. A famous brand-name manufacturer wants to know whether people prefer Nibbles or Wribbles. They sample each type of cracker and indicate their like or dislike on a scale fro
If the fracture strength measurements of glass have a standard deviation of 0.4 thousands of pounds per square inch, how many glass fracture strength measurements should be taken if the sample mean
Use this information to determine the minimum sample size that could be used in next year's survey to estimate the mean salary of IMA members to within $2000 with 98% confidence.
Consider a sequence of independent Bernoulli trials with p=0.28. (a) What is the expected number of trials to obtain the first success?
A random sample of 225 SAT scores has a mean of 1500. Assume that SAT scores have a population standard deviation of 300. Construct a 95% confidence interval estimate of the mean SAT scores. Show al
A television station claims that its Monday night movie regularly has 35 percent of the total viewing audience. If this claim is correct, what is the approximate probability that among 100 viewers r
Determine the sample proportion, p, of college students who own shares of stock. If the population proportion is 0.30, determine the standard error of the proportion.
A sample of 36 receipts at the theater concession stand has a mean total of $18.927 with a standard deviation of $3.883. Calculate the value of E, the margin of error you would use to find a confide
If she believes from previous studies that the true proportion is .25. (Give answer as a whole number ) If she has no idea of the proportion with hearing loss. (Give answer as a whole number.)
The comfort widget company makes severtal different widgets. The smallest widget the company manufactures has a mean diameter of 3.5 inches with a standard deviation of .25 inches. The distribution
Perform all of the steps of a two-tailed test of whether the population correlation is significantly different from zero. Use alpha = .01.
you obtain the following statistics: sample mean = 25, sample variance = 529, sample median = 20, min value = 3, max value = 60. The best point estimate for the unknown parameter for this exponentia
According to experian, the population of consumer credit card holders carries an average credit card balance of $5500 with a standard deviation of $750. You plan to draw a random sample of 625 credi
A sample of 210 Bell computers has 56 defectives. Theory suggests that a third of all Bell computers should be defective. Does this data contradict the theory (at alpha=0.05)? Specifcially,
At a 5% significance level (95% confidence level), what is the critical value(s) in this test? Do we reject the null hypothesis? What are the border values of between acceptance and rejection of