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State whether a cumulative frequency, relative frequency, relative percent, cumulative relative frequency, or cumulative percent is most appropriate for describing the following situations. For cumulative distributions, indicate whether these should be summarized from the top down or from the bottom up.Data:
1. The frequency of businesses with at least 20 employees: _
2. The frequency of college students with less than a 3.0 GPA: _
3. The percentage of women completing 1, 2, 3, or 4 tasks simultaneously:
4. The proportion of pregnancies performed in public or private hospitals:
5. The percentage of alcoholics with more than 2 years of substance abuse:
A coin was flipped 60 times and came up heads 36 times. What is the critical value you would use to test whether the proportion of heads is greater than 0.50 at a 10% level of significance?
Assignment - Simple Classifiers - Demonstrate that your ANN works correctly by showing its output - Demonstrate that your perceptron works correctly
Suppose that the heights of boys in a high school basketball tournament are normally distributed, with mean 72 in. and standard deviation 1.5 in.
Which is more usual, a flight arriving 4 minutes earlier than the mean delay time or a flight arriving 4 minutes after this time? Explain.
steve and his friends are relaxing at a local tavern. the number of drinks that steves table receives is poisson
(a) Give the cutoffs for the grades in this course in terms of standardized scores. (b) Give the cutoffs in terms of actual total scores.
Random samples of size 15 are drawn from this population, and the mean of each sample is determined. (Adapted from Consumer Reports)
The company statistician has reported the mean number of man-hours lost per month but did not keep a record of the total sum. Should the manager order the study repeated to obtain the desired information? Explain your answer clearly.
an example of a dummy variable is time to products first repair in years.select
Participants enter a research study with unique characteristics that produce different scores from one person to another
He concluded that this popping method achieved the 10% goal. If it really does not work that well, what kind of error did Hopps make?
Construct a 95% confidence interval of the proportion of American adults who view China as either "unfriendly" or as "an enemy."
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