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Question: Cloud Seeding-Multiplicative vs. Additive Effects. On the computer, create a variable containing the rainfall amounts for only the unseeded days.
(a) Create four new variables by adding 100, 200, 300, and 400 to each of the unseeded day rainfall amounts. Display a set of five box plots to illustrate what one might expect if the effect of seeding were additive.
(b) Create four additional variables by multiplying each of the unseeded day rainfall amounts by 2, by 3, by 4, and by 5. Display a set of five box plots to illustrate what could be expected if the effect of seeding were multiplicative.
(c) Which set of plots more closely resembles the actual data?
The mean weight for a certain type of fish is known to be 28.0 ounces with a standard deviation of 2.5 ounces . A game warden catches and weighs 30 fish from a certqin pond to check if they are larger than the mean stated above.
Is it possible that the marginal trimmed means are equal but the trimmed mean based on the difference scores is not equal to zero? What does this indicate in terms of power?
An accountant wants to test the hypothesis that the proportion of incorrect transactions at four client accounts is about the same. A random sample of 80 transactions of one client reveals that 21 are incorrect
The following payoff matrix has been developed for the decision problem. What is the opportunity loss when "A" is Investment alternative and "Decline" is state of nature?
4th graders in the US take a standardized test for math. The national average score is 237. Did your state, as represented by your students, out perform the national average using a statistically significant measure?
A random rectangle has sides the lengths of which are independent uniform random variables. Find the expected area of the rectangle.
With the fluctuation of gas prices today, the mileage ratings of vehicles
Conditions 2 and 3 needed for the sampling distribution of P^ to be approximately normal are met because this result is based on a large random sample of adults. Explain how Condition 1 is also met.
Let F be a CDF which is continuous and strictly increasing. Let µ be the mean of the distribution. The quantile function, F-1, has many applications.
A random variable X has the following probability distribution:- Calculate the mean of X.- b. Calculate the variance of X.
Create a 95% confidence interval for true mean.
if the distribution is approximately normal the t-test is a more powerful test about the central tendecy of the
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