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Irate patient complained that cost of doctor's visit was too high. She arbitarily surveyed 20 other patients and found that mean amount of money they spent on each doctor's visit was $44.80. Standard deviation of sample was $3.53. Determine point estimate of population mean. Determine the 95% confidence interval of population mean. Suppose the variable is normally distributed.
If person is selected at random determine the probability that he/she has enzyme level less than 4.0 units/ml?
A polling organization plans to sample 1000 adult Americans to estimate the proportion of Americans who think crime is a serious problem in this country. (a) What is the parameter of interest to the polling organization? (b) What will be the stati..
The number of girls who attend a summer basketball camp has been recorded for the seven years the camp has been offered.
One state lottery has 1000 prizes of $1, 200 prizes of $5, 50 prizes of $25, 15 prizes of $150, 4 prizes of $500, and 1 prize of $2500. What is the lottery expected profit per ticket?
A study 200 nurses found that of 125 females nurses, 56 had bachelor's degree; and of 75 male nurses; 34 had bachelor degrees. if a nurse is selected at random, find the probability that the nurse is a female nurse with a bachelor degree.
According to the U.S. Census Bureau, the mean household income in the United States in 2000 was $57,045 and the median household income was $42,148.
Test to determine if there is a significant negative relationship between the independent and dependent variable at a = .05 and .01
A stationery store to estimate the mean retail value of greeting cards purchased by its customers when they visit the store. A random sample of 15 customers indicates a mean amount of $2.55 with a standard deviation of $0.44 per customer per visi..
Create a drawing or plan for a 2 x 3 experimental design that would lend itself to a factorial ANOVA. Be sure to identify the independent and dependent variables.
What is the optimal strategy for producing 500 tons of newsprint pulp, 600 tons of packaging pulp, and 300 tons of print stock quality pulp at minimum cost?
Utilize this information to construct a probability table, and then calculate each of the given probabilities:P (female and domestic car).
A particular fast food restaurant is located near a University. 40% of the customers are students. Students prefer the spicier items.
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