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An airline wants to estimate the average number of unoccupied seats per flight. A random sample of 30 flights is selected and the mean number of unoccupied seats is 7.6. Assume that the population standard deviation of unoccupied seats is known to be 3.9. Compute and explain a 95% confidence interval estimate of the population mean number of unoccupied seats per flight.
Calculate the odds ratio of the fish being female in the cold environment compared to the fish in the warm environment. Interpret this ratio in the context of the question.
Write a brief note stating the circumstances under which cusum charting may be preferable to normal Shewart charting methods and calculate the mean of the sample values below, and suggest a suitable value for k, the cusum reference value.
What is the average rating for all CBC movies? How about ABN movies and BBS movies and create a line graph of the monthly average ratings for CBC for the year
An investigator wants to estimate caffeine consumption in high school students. How many students would be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 5% of the true proportion with 95..
The result is a sample size beyond what you can obtain
How many of the data values will fall within the range
knowledge of binomial confidence intervals
Give the state transition probability matrix
The following table gives the data for per capita income in thousands of US dollars with the percentage of the labor force in Agriculture and the average years of schooling of the population over 25 years of age for 15 developed countries in 20..
ANOVA and Factorial Designs
Explain the assumptions underlying the two-sample test of means.When can one assume normality for two proportions?
q1.what background information was provided about the health issue and why it is an issue?q2.what was the research
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