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Suppose X has an exponential distribution with mean equal to 10. Determine following:
(a) P(X > 10)
(b) P(X > 20)
(c) P(X > 30)
Determine the margin of error that corresponds to the given values of n (times) and x (successes) and the degree of confidence: n=1400, x=420, 95%. Go 3 decimal places of precision.
Assume we have set of blood pressure with a mean of 80 Diastolic, and a sample standard deviation of 10 points. If we assume a normal distribution of Diastolic blood pressures,
What is the computed z-value for testing the null hypothesis that the proportion of successes in Population 1 exceeds the proportion of successes in Population
Find the mean, median, mode, standard deviation, and variance. Analyze and explain why these statistical measures are important and how they apply to your data.
An advertising agency has been hired by a manufacturer of pens to develop an aqdvertising campaign for the upcoming holiday season. To prepare for this project, the research director decides to initiate a study of the effect of advertising on pro..
Discuss the main assumption for using a chi-square test. Find a research article that uses chi-square and explain why it was the right test and how the assumption plays into it.
Which statistic technique can use.. when apply three treatment(treatment 1, treatment2, treatment3)on 2 dependent variable?(i applied 3 treatments consecutively and checked effect of them on 2 dependents variable. can i apply repeated measure of anov..
Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.
Describe to a person who has never taken a course in statistics the meaning of a grouped frequency table.
Research results suggest that IQ scores for boys are more variable than IQ scores for girls (Arden & Plomin, 2006). A typical study looking at 10-year-old children classifies participants by gender and by low, average, or high IQ.
Total housing costs as a percent of monthly income, five years ago and now. The information is reported below. Is it reasonable to conclude the percent is less now than five years ago?
a researcher wishes to compare the effect of the rate of stepping on heart rate in a step-aerobics workout. a
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