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Given these results, does it seem that the candy company is provideing consumers with the amount claimed on the label (yes or no) because the probablity of getting a sample mean of 0.8539g or greate
Compute the probability of three customers arriving within the first 12minutes of the checkout counters operation
A certain city divides naturally into ten district neighborhoods. How might a real estate appraiser select a sample of single-family homes that could be used as a basis for developing an equation to
An appropriate method is to sample the most expensive homes in a randomly selected district. An appropriate method is to generate a simple random sample of all single-family homes in the city or a
In an assembly-line production of industrial robots, gearbox assemblies can be installed in one minute each if holes have been properly drilled in the boxes and in ten minutes if the holes must be r
For samples of size 1010, find the probability of observing 202 or more U.S. employees in the sample who play hooky.
Researchers are studying yield of a crop in ten locations. The researchers are going to compute independent 90% confidence intervals for the mean yield at each location.
Assume that the population standard deviation is 2 The margin of error for a 98% confidence interval is desired to be =/- 0.5inches. What should be the sample size?
An agricultural researcher plants 100 plots with a new variety of yellow corn. Assume that the yield per acre for the new variety of yellow corn follows a normal distribution with unknown mean and s
What is the expected value of perfect information?
A local real estate investor in Orlando is considering five alternative investments: a day spa, a theater, a restaurant, a motel, or a gift shop. Profits from the day spa, theater, gift shop or rest
Given the following table of payoffs use sensitivity analysis to determine at what probability or more you would select decision C?
Use graphical sensitivity analysis to determine at what probability you are indifferent to d1 and d2?
Is there a statistically significant correlation between dose and cholesterol level in this case? What is the predicted cholesterol level for a person taking a dose of 4 mg? What about if they are n
What is the value of the test statistic? Answer is t= 2.04 but need an explanation of how to get it.
Using a = .05, test to see if there is a significant difference among the means of the three populations (using either the p-value or critical value approach). In other words, what conclusion can yo
A new method of treatment is hypothesized to reduce the days patients are hospitalized after surgery. For a sample of 100 patients, the mean number of days of hospitalization is 5, with a standard d
Information regarding the ACT scores of samples of students in three different. Compute the overall sample mean.
A chi-square test for independence is used to evaluate the relationship between two variables. If both variables are classified into 2 categories, then what is the df value for the chi-square statis
The average cost per night of a hotel room in New York City is $273 (SmartMoney, March 2009). Assume this estimate is based on a sample of 45 hotels and that the sample standard deviation is $65. W
In order to determine an interval for the mean of a population with unknown standard deviation a sample of 61 items is selected. The mean of the sample is determined to be 23. The number of degrees
A retailer of electronic equipment received six HDTVs from the manufacturer. Three of the HDTVs were damaged in the shipment but the damage was not detected by the retailer. The retailer sold two HD
What is the value of SP for the following set of data? Explain answer and show work, please.