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Assume that the class has 60 students and 60 minutes to complete the exams. How many students do you expect not to be able to complete the exam in the alotted time?
What is the probalility that the mnean annual snowfall during 64 randomly picked years will exceed 107.8 inches? Round your answer to four decimal places.
Determine the least squares equation. According to this information, what are the estimated sales for 2005? Listed below is the net sales in $ million for Home Depot, Inc. and its subsidiaries from 1993 to 2002.
Give a work example and perform a hypothetical 2 population hypothesis test. Create a scenario and do a hypothesis testing example for ANOVA. Give the result and explain what it means.
A random sample of 56 people measured accuracy w/ positive errors representing watches that are ahead of the correct time and negative rep. those behind the time.
We wish to construct a 90% confidence interval on the mean of a population known to be normally distributed based on a sample of 20 observations having a sample mean of 8 and a sample standard deviation of 2. What is the standard error?
The mean and median selling price of existing single-family homes sold in October 2005 were $216,200 and $265,000. Which of the following most accurately explains which is the mean and which is the median and why?
Given a normal distribution of data, we know from the Empirical Rule that in between 2 standard deviations from the mean
A researcher conducts some research in which they identify a significant positive correlation (r =0.42) between the number of children a person has and their life satisfaction. Which of the following is it inappropriate to conclude from this resea..
Compute the mean of the sampling distribution? Compute the standard deviation of sampling distribution?
In estimating a 95% confidence interval estimate of the average number of days absent for the company's workers last year should you use a z or t value in the formula?
Customers arrive to the company at a rate, on average, of one per hour with a Poisson distribution. The company is staffed by a single individual(the owner) who takes on average 30 minutes with each customer with a standard deviation of 15 minute..
Explain how the use of the hypothesis testing can be used to evaluate solutions to the research issue.
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