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The average number of mosquitos in a stagnant pond is 100 per square meter with a standard deviation of 8. If 9 square meters are chosen at random for a mosquito count, find the probability that the average of those counts is more than 101.6 mosquitos per square meter. Assume that the variable is normally distributed.
Construct a 90% prediction interval for sales when the total sq footage is 4.2 billion. The equation of the regression line is yhat=499.967x - 1595.147.
Using data provided, test if there is a difference between means at alpha =.05.
What is the point estimate of the number of pieces per package? Construct a 99% confidence interval to estimate the mean number of pieces per package for the population.
Your boss has determined that on Wednesday, 5 random employees on the line to have a chance to obtain a $25 bonus if they produce more XT34's than 84% of all other employees on the line.
Carry out the ANOVA and, if essential, post-hoc comparisons. Make a graph to represent group differences, and interpret ANOVA in a paragraph written in APA style.
Critically illustrate out the term standard deviation. Define mathematical averages. Why is the standard deviation less than the mathematical average?
Using the information provided, determine the optimal number of clerks to have on duty each Satyrday to minimize the store's total expected cost.
Determine the maximum error of the estimate, E. Determine the confidence level used for the given confidence interval.
What is the mean of the sample proportion of pieces of unread mail? What is the standard error of the sample proportion?
A machine fills containers with a mean weight per container of 16oz. If no more than 5% of the containers are to weigh less than 15.8oz, what must the standard deviation of weights equal?
Find the probability that when 12 adults are randomly selected, at most 1 is in excellent health. Round your final answer to 3 decimal places.
How have you used the scientific process (unsystematic observation, building theories, and evaluating propositions) in your life to better understand your personality?
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