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Choose a quantitative variable. Collect two different samples of size 10 from two different populations. For example, you might measure the number of cups of coffee consumed daily by men vs women. Explain how the data was collected. Provide a description of of the data selected, and the two different populations you chose.
Record the data, and for EACH sample use Stat Crunch to find the mean and standard deviation and the five-number summary. Compare your two samples by comparing the boxplots and dot plots for both sets of data.
Summarize your results in a paragraph, including a description of how you collected your data and your interpretation of the results. Does it appear that the two populations are similar, or different? Why?
As a newly hired Staff I, you are responsible for analyzing the work papers for one of the clients of your organization. Your client is not clear about why you are asking for information on the following topics:
What is the difference between classification and regression and What is difference between supervised and unsupervised Learning with examples
Suppose that a simple random sample of n = 2 numbers will be selected from the list of values 1, 2, 3, 4, 5.
You do not need to collect data and actually conduct the test calculations. Rather,state the claim, define the null and alternate hypotheses, identify the test significance and the test statistic, and state the decision rule that will be used.
Assume the random variable x is normally distributed with mean µ=50 and standard deviation s=7. Find the indicated probability.
q1. consider an experiment that results in a positive outcome with probability 0.38 and a negative outcome with
According to a consumer survey of young adults? (18-24 years of? age) who shop? online, 20?% own a mobile phone with internet access. In a random sample
Recurrence is defined as the reappearance of a metastasis in exactly the same site, or in the case of patients whose tumor never completely disappeared, enlargement of the original lesion. Times to recurrence (in weeks) for the 23 patients were: 2..
The "average" (mean) tire wore out at 41,000 miles, and the standard deviation was 4000 miles. Approximately what percent of the tires are likely to wear out before 40,200 miles?
a cast a die a number of independent times until a multiple of 3 appears on the top side of the die. find the
The amount of underage drinking, as documented in formal incident reports, is compared at "dry" college campuses (no alcohol at all regardless of age).
a. the probability that exactly 20 items will be scanned incorrectly from the next 5,000 items scanned b. the probability that more than 20 items will be scanned incorrectly from the next 5,000 items scanned c. the probability that the number of item..
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