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Bob tried placing the maximum bet thinking that it might work but even after playing over four hundred times, he hasn't made more than a couple of dollars. In fact he has already last $300 Why does
If the due date of this project is set at 40 weeks, what is the probability that the contractor will have to pay a penalty (i.e., the project will not be finished on schedule)?
If the model is used on a new location and predicts the restaurant will be successful, what is the probability that it actually is successful?
If the population standard deviation of annual usage is 12.5 pounds, what is the probability that the sample mean will be each of the following?
Steve Goodman, production foreman for the Florida Gold Fruit Company, estimates that the average sale of oranges is 4,700. What is the probability that sales will be less than 4,300 oranges
It is expected that the sales follow a normal distribution with a mean of 457,000 pencils. Estimate the standard deviation of this distribution.
Reject the null hypothesis, there is significant evidence that education professionals consume more water daily.Fail to reject the null hypothesis, there is significant evidence that education profess
The mean number of network viruses detected in a day is 3.5. What is the probability that in any given day: Zero network viruses will be detected?
A sample of 12 observations is selected from a normal population for which the population standard deviation is known to be 4. The standard error of the mean is?
It is found that on average each person who regularly visits the bar spends about $2000 per year in the bar with a standard deviation of $196. Construct a 99 percent confidence interval around the m
Assume that the box contains 5 defective widgets and 15 acceptable widgets. There are 3 inspectors, each of whom selects a widget from the box at random, inspects it, and then replaces it in the box.
Schadek Silkscreen Printing Inc. purchases plastic cups on which to print logos for sporting events, proms, birthdays, and other special occasions. What is the estimated proportion defective in the
Using the same data conduct a correlation analysis using SPSS or Excel. What is the correlation coefficient? Is it a strong, moderate or weak correlation? Is the correlation significant or not? If i
It is desired to estimate the mean viewing time within one-quarter hour. The 98 percent level of confidence is to be used. How many executives should be surveyed?
Is there evidence that the population mean time to prepare and cook dinner is different from 40 minutes? Use the p-value approach and a level of significance of 0.05.
The number of work stoppages in a highly industrialized region for selected months are: 6, 0, 10, 14, 8 and 0. What is the median number of stoppages?
What cycle service level should Ticos Inc. provide if cafes will NOT wait to receive a bag of coffee and instead any stock outs result in a lost sale for Ticos Inc.?
Find the point estimate for the mean length of all parts now being produced. Find the 0.99 confidence interval for μ.
Suppose 100 batteries are randomly selected from a vendor, what is the minimum sample mean life, ybar, at which the company decides to buy?
Probability of selecting a household with no children that is equal to the value obtained by the census. Give the z statistic (rounded to two decimal places) and the P-value. What do you conclude?
They use the pick-up service will use the account service. If the two services are introduced to the market, what is the probability a customer uses neither of these services?
A gumball machine has just been filled with 52 black, 148 white, 96 red and 104 yellow gum balls that have been thoroughly mixed.
Construct a frequency distribution and a frequency histogram for the data set using the indicated number of classes. number of classes:6
What are the appropriate hull hypothesis to compare the quality of the product manufactured in the overseas plant and the U.S. plant? Why?
Identify the null and alternative hypotheses you should form for this test. State each as an explanation and as a math equation.