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Environmental credits.
An opinion poll asks an SRS of 500 adults whether they favor tax credits for companies that demonstrate a commitment to preserving the environment. Suppose that in fact 45% of the population favor this idea. What is the probability that more than half of the sample are in favor?
the function fx 0 for xlt0 14x6 for 0ltxlt2 1 for xgt2 is the distribution function of a mixed random variable x.
about 12 of the adult mexican-americans have been diagnosed with diabetes. if you were to randomly sample the
You are asked to estimate the chance that the sum will be positive. Can you do it if you are also told the average and SD of the numbers in the box, but are not told the numbers themselves?
one of mendels breeding trials came out as follows. make a chi-square test to see whether these data were fudged.type
The outcome of the toss is announced to II. Then II must guess whether I chose the fair or biased coin. If II is correct there is no payoff. If II is incorrect, she loses 1. Draw the game tree.
4. Three hundred students took a chemistry test. You sampled 50 students to estimate the average score and the standard deviation. How many degrees of freedom were there in the estimation of the standard deviation? (Justify for full credit)
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
Taking α to be 0.05, what is/are the critical values associated with testing your hypothesis?
What is the sensitivity and specificity of the test? Suppose that 1 out of 500 infants are born with Down's syndrome.
Impact of Credit Crisis on Risk of Financing Homewood Co. commonly finances some of its U.S. expansion by borrowing foreign currencies (such as Japanese yen) that have low interest rates.
in the powerballreg lottery the player chooses five numbers from the first field of 59 numbers and one powerball
Using the table above, answer the following questions: (a) How many variables were there in this analysis?
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