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My product development team is wondering if there is a correlation between retail online sales and total retail sales. I must work with the peer/mentor group to calculate the correlation between online and total retail sales, and interpret the results. If my peers are struggling with the calculations, I should share examples and insights to help them along.
Then, give two examples of correlation which are evaluated in a business environment and discuss the decision made by evaluating the correlation.
How many individuals will it need to sample to achieve this level of accuracy and confidence?
What is the intercept for the logistic regression equation and What is a 95% confidence interval for the odds ratio
The manager of Sam's Food Mart guarantees that none of his cartons containing a dozen eggs will contain more than one bad egg, despite the fact that 4% of individual eggs are known to be bad. Define the random variable x to be the number of bad eg..
Find out the decision strategy company must follow, expected value of strategy, and maximum amount the company must pay market research firm for survey results.
A random sample of 200 people was taken. Sixty percent of the people favor President Obama. The 95% confidence interval for the true population of people who favor Obama is?
Determine z score corresponding to minimum height requirement and determine z score corresponding to maximum height requirement.
Recognize the kind of sampling (random, systematic, convenience, stratified, cluster) employed whenever a sample of people who smoke is obtained as explained below.
What is the purpose of a survey? What are three examples of a survey and what potential purpose could each be used for? How can one work to ensure the participants of a survey will have their responses kept private?
Compare the means of two populations using 96% confidence interval:
A survey conducted by the American Automobile Association showed that the family of four spends an average of $215.60 per day while on vacation. Suppose a sample of 64 families of four vacationing at Niagara Falls results in a sample mean of $252...
In a study of elephants a researcher wishes to determine the average weight of a certain subspecies of elephants. From previous studies, the standard deviation of the weights of elephants in this subspecies is known to be 1500 pounds.
How many observations were in the original data set? In the bottom row of the stem and leaf display identify the stem the leaves and the numbers in the original data set represented by this stem and its leaves.
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