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1. Classify the following variable as nominal, ordinal, discrete, or continuous and state why it is such a variable: religious affiliation.
2. Classify the following as an example of a nominal, ordinal, interval, or ratio level of measurement, and state why it represents this level: rankings of the top ten best-selling authors.
Assume a random sample of 16 gasoline stations is selected and their mean cost for regular gasoline is computed. What is the standard error of the mean in this experiment?
Chi-square test for independent attributes - Are the opinions on the tax cut proposal independent of party affiliation? Use a = 0.01
If a worker at this fast food restaurant is selected at random, what is the probability that the worker earns more than 6. 75.
A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of $2.91.
The probability that D1 operates correctly is 0.95 and the probability that D2 operates correctly is 0.92. Find the probability that the sprinkler system will come on.
By using the 0.10 level of significance, is there evidence that the population mean is above the $300?
An Electric Co. Operates a fleet of trucks that provide electrical service to the construction industry. Monthly mean maintenance cost has been $75 per truck.
Discuss how the statistical application of Pearson r is used for hypothesis testing.l Through application of the Spearman Correlation discuss what type of data the Pearson formula can be used for.
The library is to be given 3 books as a gift. The books will be selected from a list of 16 titles. If each book selected must have a different title, how many possible selections are there.
If the value of y is 11 thousands, find the probability that these tires will last at most 15,227 miles. You MUST write your answers with 3 decimal places.
a student wants to assess whether her dog muffin tends to chase her blue ball more often than she chases her red
state the hypotheses and identify the claim. compute the test value At a = 0.05, decide if there is enough evidence to reject the claim of no difference in the ages fo the two groups. Compute and use the standard deviations from the samples.
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