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The quarterly returns of a group of 59 mutual fund with the mean of 3.6% and standard deviation of 5.3% can be modeled by a normal model. based on the model N(0.036, 0.053), what are the cutoff valu
Predict the weekly sales of pet food for a store with 8 feet of shelf space situated at the back of the aisle. Construct a 95% confidence interval estimate and a 95% prediction interval. Perform a r
The quarterly returns of a group of 53 mutual fund with the mean of 3.7% and standard deviation of 5.9% can be modeled by a normal model. based on the model N(0.037, 0.059), what are the cutoff valu
35% brown, 20% yellow, 20% orange, 15% green, and 10% tan. Each piece of candy in a random sample of 100 plain M&M's was classified according to color,and the results are listed below.
Based on the equation from # 28, what is the predicted value of y if x = 3? Show all work and justify your answer. Find an equation of the least squares regression line.
Grandma gertrude's chocolates, a family owned business, has an opportunity to supply its product for distribution through a large coffee house. However, the coffee house chain has certian specificat
A sample of 100 customers at the Lighthouse Cafe resulted in the following frequency distribution for a dinner bill.
A human resource manager at a large company wants to estimate the proportion of employees that would be interested in reinbursement for college courses. If she wishes to be 95% confident that her es
A human resource manager at a large company wants to estimate the proportion of employees that would be interested in reinbursement for college courses.
What is the standard deviation of the company's annual expense with the service contract for the computer?
The unemployment rate of persons with a disability is typically higher than for those with no disability. Recent statistics report that the national rate of unemployment among this group is 14.5%.
Using the solution from Problem 5 and given the list of crash times and costs, determine the new diagram and times. Assume for every day you complete the project ahead schedule you recieve a $60 bonus
Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.2, 0.3, and 0.5, respectively. What is the standard deviation of this customer's book purchases?
The economic order quantity (EOQ) model is one of the oldest and most commonly known inventory control techniques.
Assume we want to use a 0.10 significance level to test the claim that the published color distribution is correct. Identify the null hypothesis and the alternative hypothesis.
In other words, the two points X and Y are independent random variables such that X is uniformly distributed over [0,7) and Y is uniformly distributed (7,14]. Find the probability that the distance
Two points are randomly on a line of length 14 so as to be on opposite sides of the midpoint of the line. In other words, the two points X and Y are independent random variables such that X is unifo
How many different possible trifecta bets could they have made? How many different possible boxed trifeca bets could they have made?
Let X and Y be independent geometric distributions. U = min(X,Y), V = X - Y
Refer to the following table for Questions 1, 2, and 3. Show all work. Just the answer, without supporting work, will receive no credit. The table shows temperatures on the first 12 days of October
The company's research indicates that during a given year 86% of these computers need no repairs, 9% need to be repaired once, 4% twice, 1% three times, and none required more than three repairs. Wh
Suppose that the lengths are normally distributed A quality control specialist collects a random sample of 16 rods and finds the sample mean length to be 14.8 feet and a standard deviation of 0.65
A sample of 15 homes recently sold in the Buffalo, New York, area revealed the mean number looking through each home was 24 and the standard deviation of the sample was 5 people. Develop a 98% confi
If 3 different factor levels show a lot of variation between levels this implies: A large amount of error within each level therefore the ANOVA will not be accurate
A researcher computes a 2 × 4 chi-square test for independence. What are the degrees of freedom for this test? Explain your answer.