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An understanding of statistics is necessary in any job. The use of statistics can help provide answers to many questions. Please, post a question you think that statistics may help you answer and explain why statistics can help provide an accurate answer. Read several of your classmates' postings. Do you agree that statistics are necessary to answer their questions? Is their question one that you would also like to have an answer to? Why or why not?
Since 1865, African Americans, Native Americans, Women, Latino Americans, Asian Americans, other Minority Groups (native-born and immigrant), Homosexuals, Immigrants from all over, Religious Groups, etc.
Does the concept of margin of error make sense if the data in a poll do not come from a random sample?- Write a brief report on what you learned about sampling distributions and margins of error for proportions.
In a non instanteneous receipt model, daily demand is 55 units and daily production is 120 units, Co=$70 and Cc=$4 per unit per year. What is the maximum inventory level?
What is the probability that a shopper will spend more than 25 minutes in a store? If 200 shoppers enter a store, how many shoppers would you expect to stay in the store for more than 25 minutes?
A random variable is said to have the (standard) Cauchy distribution if its PDF is given by (5.2.6). This exercise uses computer simulations to demonstrate.
if the population standard deviation of the lifetime of washing machines is estimated to be 900 hours how large a
the weight of the cereal in a box is a random variable with mean 12.15 ounces and standard deviation 0.2 ounce. what
a candy maker produces mints that have label weight of 20 grams on each box. assume that the weight of a box of mints
In an article in the Journal of Advertising, Weinberger and Spotts compare the use of humor in television ads in the United States and the United Kingdom.
A confidence interval for the average age of Walmart shoppers can be found below. On the basis of the confidence interval shown below, you can (or should) conclude that the average age of Walmart shoppers is over 52.
What are the five steps in the hypothesis testing procedure, what does each step represent, what are the advantages and disadvantages of using a hypothesis testing procedure?
A weight-loss company wants to statistically prove that its methods work. They randomly selected 10 clients who had been on the weight loss program for between 55 and 65 days. They looked at their beginning weights and their current weight. The st..
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