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It is known that the white shark grows to a mean length of 22 feet; however, one marine biologist believes that great white sharks off the Bermuda coast grow much longer. To test this claim, full-grown white sharks were captured, measured, and then set free. However, this was a difficult, costly and very dangerous task, so only four sharks were actually sampled. Their lengths were 20, 20, 24,and 21 feet. Do the data provide sufficient evidence to support the claim? Use ?=0.05
test statistic t=____.
rejection region t>____.
The following 4 questions (Q1 to Q4) are based on the following information:You and your friends have decided to go to The Kentucky Derby. There are 12 horses inthe race. How many ways can the horses come in first, second, or third?
In this problem we want to run a test of goodness of fit to check whether the coats in the consignment follow the indicated probabilities.
In the order of operations Pemdas requires that exponentation takes precedence over multiplication, so we cannot multiply 4*2 without first evaluating 2^x, but we could divide both sides by 4.
A survey last week revealed that out of 400 viewers contacted, 94 watched the news on WBEN. Can we conclude that the percent of viewers has increased? Use the 0.05 significance level.
Briefly identify and contrast the methods used by the psychoanalytic perspective, the humanistic perspective, and the trait perspective to assess personality.
for a certain aptitude test it is known from past experience that the average score is 1000 and the standard deviation
media coverage influences the publics perception of the criminal justice system and the policy agendas of those within
10 independent measurements were made of the pH level for both solutions, with the following data testing. Do the data disprove the scientist's claim? Use the 5% level of significance. What is the p-value?
the heights and weights of 11 men between the ages of 21 and 26 were measured. the data are presented in the table
a well-insulated turbine operating at steady state develops 10 mw of power for a steam flow rate of 20 kgs. the steam
What critical value should the company officials use to determine the rejection region?
How would you determine which test would be appropriate to use? What characteristics of the problem would you use to determine which hypothesis test you should use? Explain your answer.
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