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A bank has the following data on the gender and marital status of 200 customers.
Male FemaleSingle 20 30Married 100 50
a. What is the probability of finding a single female customer?b. What is the probability of finding a married male customer?c. If a customer is female, what is the probability that she is single?d. What percentage of customers is male?e. If a customer is male, what is the probability that he is married?f. Are gender and marital status mutually exclusive?g. Is marital status independent of gender? Explain using probabilities.
What is the probability trading volume will be less than 400 million shares?
The following data was randomly drawn from a normal population. At an alpha level of .05, does the mean of the population differ significantly from -150. Use Excel.
Describe and analyze your quantitative data and Briefly address the data analysis process.
A recent report from the American Medical Association claims that for the first time in ten years, the average salary of psychiatrists was greater than $190,000 with a standard deviation of $27,000. What is the null hypothesis for his claim?
Which of the following can be treated as binomial experiment? (a) Surveying 1200 registered voters to determine their preferences for the next president?
Find out a plausible value r for correlation between vehicle weight and miles per gallon (mpg) shown in the scattergram below?
Is it harder to get into graduate programs in psychology or history? We randomly selected five institutions from among all U.S. institutions with graduate programs.
A random-effects ANOVA refers to the analysis where the levels included in the study represent a random sample of all levels that exist.
Explain the difference between testing a single mean and testing the difference between two means. What two assumptions must be met when one is using z test to test differences between two means?
The lives of many people are affected by a fear that prevents them from flying. The Marist Institute for Public Opinion conducted a poll of 1014 adults
Calculate the "t" value for independent groups for the following data using the formula presented in the module. Check the accuracy of your calculations.
Assume that a patient is believed to have one of two diseases, denoted by D1 and D2 with P(D1)=0.40 and P(D2)=0.60 and that medical research has determined the probability associated with each symptom that may accompany the diseases.
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