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Is there a linear relationship between age and education, and if so, how strong is that relationship? Is it possible to predict educational level based on age? If so, what limitations exist for the developed method?
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...
At α = 0.05, is the correctness of the prediction different for the two types of cola drinkers?
A group of items of data have been found to be normally distributed with a mean of 80 and a standard deviation of 6. Please convert 80 to a z-score and show the calculation.
The NY Dept of Motor Vehicles (DMV) designs its license plates with space for 7 letters or numerals. In the most recent iteration, the DMV uses three letters followed by 4 numbers.
What are examples in which non-parametric tests are used to analyze business related problems in general, and more specifically, problems related to marketing?
indicates that the data provides a strong evidence against the null hypothesis. So reject the null hypothesis." - but what is H0 that we are rejecting?
What are the main differences between descriptive and inferential statistics? Give examples of each. When would random sampling not be the best approach to sample selection? Give an example.
probability using pareto chart.1. use the pareto chart which shows the results of a survey in which 500 adults were
Portfolio Risk. Who would view the stock of Learning Tower of Pita as a risk reducing investment - the owner of a gambling casino or a successful bankruptcy lawyer? Explain.
Five persons donate blood at the clinic on a particular day. Find the probability that at least one of the five does not have Rh+ blood.
What is the probability that a randomly selected person will be a Protestant and at the sametime be a Democrat or a Republican and what proportion of teenagers watch 16 to 18 hours of TV a week?
Find a 90% confidence interval for the population mean if the sample mean is 1250 with a sample standard deviation of 35 for a sample of 20.
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