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Physical Sciences There are over 1 million earthquakes worldwide of magnitude 2-2.9 each year. However, the mean number of earthquakes of magnitude 8 or higher is approximately one per year.38 Suppose a random year is selected.a. What is the probability of exactly two earthquakes of magnitude 8 or higher?b. What is the probability of at most four earthquakes of magnitude 8 or higher?c. Suppose there are three earthquakes of magnitude 8 or higher. Is there any evidence to suggest that the mean is different from one? Justify your answer.
Warren Road MacBurger that the mean waiting time was 2.75 minutes. At the 0.05 significance level, can we conclude that the mean waiting time is less than three minutes?
A summary of material transactions for November shows the following transactions: Prepare journal entries to record these transactions.
A weight loss clinic advertises that its program of diet and exercise will allow clients to lose 10 pounds in one month.- Create a confidence interval to test the clinics claim that the typical weight loss is 10 pounds.
Let X be the number of kings selected and Y the number of jacks. Find (a) the joint probability distribution of X and Y ; (b) P[(X, Y ) ? A], where A is the region given by {(x, y) | x + y = 2}.
When calculating correlation coefficient, what does a value of -2 indicate? Strong negative correlation, Weak negative correlation.
in a random sample of 5 parts on an assembly line the probability that one of the parts is defect is 15 and follows a
Convert Alisha's grandmother's score to a z score among the distribution of exercise capacity in Americans over seventy years old. Who has a relatively longer exercise capacity compared to her peers-Alisha or her grandmother?
Determine the best investment, using the following decision criteria. a. Maximax b. Maximin c. Minimax regret
Assume the cholesterol levels of adult American women can be described by a Normal model with a mean of 188 mg/dL and a standard deviation of 24 mg/dL.
Why is estimating a multiple regression model just as easy as bivariate regression?
Is there any evidence to suggest the population variance in blood platelet count has increased? Assume normality and use a = 0.001.
How different are the rates of violent crime and rates of crime against property across the 50 states? How are the rates of crime related to spending on criminal justice?
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