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Four samples of water were taken at five different locations along a river and measurements were obtained of the amount of E. Coli colonies within the water. Location 5 is the highest point on the stream and location 1 is the fruthest downstream. There is a polluting source abolve location 5.
a) Complete the partial ANOVA table:
Source
DF
Sum of squares
Mean Squares
F-statistic
P-value
Treatment
149.1
2.02e-06
Error
91.5
Total
19
b) Based on this analysis what can you conclude? Is it appropriate to perform pairwise comparisons? Explain.
c) In general, why is it important to meet the assumptions of the sampling distributions that we use for statistical interference?
Tay-Sachs couples. Approximately 1 in 28 people of Ashkenazi Jewish descent are Tay-Sachs carriers. In randomly sampling one man and one woman from this population, what is the probability neither is a Tay-Sachs carrier?
How many of these new cardholders would you expect to default? What is the standard deviation?
consumption of alcoholic beverages by young women of drinking age has been increasing in the united kingdom the united
It is the last play of the game and the famous coach's team is on offense. If it makes 5 yards or more, it wins; if not, it loses. Both sides choose Nash equilibrium strategies.
The expecyed monetary value with no survey is $62,000. If the expected value of sample information is -$7,000, what is the expected monetary value with the survey?
Given the following data on Asian and European Share of U.S. Light Truck Sales(1990-2003): Which trend model is best, and why? If none is satisfactory, explain.
Prove that each of the following sets is countable: The set of all numbers with two distinct decimal expansions (like 0.500... and 0.4999...);
A deck of 52 cards is dealt face up in a row. What is the probability that all 4 aces and all 4 kings are adjacent (but in any order)?
You decide to test a friend for ESP using a standard deck of 52 playing cards. Such a deck contains 13 spades, 13 hearts, 13 diamonds, and 13 clubs. You shuffle the deck, select a card at random, and ask your friend to tell you whether the card is a ..
Internal study by Technology Services department at Lahey Electronics disclosed company employees get the average of 2 emails per hour. Suppose arrival of these emails is approximated by Poisson distribution.
What is the null and alternative hypothesis? What is your final conclusion?
Two boats the prada (Italy) and the oracle (USA) are competing for a spot in the upcoming Americans cup race. They race over a part of the course several times. Below are the sample times in minutes at the .05 significance level.
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