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SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested in estimating the average SAT score of first year students at your college. If you would like to limit the margin of error of your 95% confidence interval to 25 points, how many students should you sample?
Nutritional requirement of daily allowance for iron for females under the age of 51 is 18 mg. A sample was conducted during a 24-hour period
determine the most conservative critical value for a one sided smith-satterthwaite test at alpha0.05 given var14 n14
Assuming a par value of $1,000, what is the price paid to the bondholder if the issuer calls the bond? Amount paid $
A study found that the use of bed nets was associated with a lower prevalence of malarial infections in the Gambia.13 A report of the study states that the signi?cance is P 0.001.
If we assume the IQ of this years class is normally distributed I there enough evidence to conclude at 0.1 level of significance the mean IQ.
The null hypothesis here is that the proportion of students receiving an A, B, or C is the same for each of the four combinations of instructor type.
In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is your decision if α = 0.01?
using the wilcoxon rank sum test analyze the following data for evidence that population b is different from population
For men driving the old car, testosterone levels will decrease less in men who drive the old car on the highway.
Show that there is a continuous function from [0, 1] onto Tin≥1[0, 1]n , a countable product of copies of [0, 1], with product topology. Hint: Take the sequence f (k) as in Problem 10. Let Fk (t )n := f (k)(t )n for n ≤ k, 0 for n > k. Show that F..
A medical researcher estimates that no more than 55% of the U.S. adults eat breakfast every day. In a random sample of 250 U.S. adults, 56.4% say that they eat breakfast every day.
In a sample of 4 items, what is the probability that exactly 3 are acceptable? Assume the samples are drawn without replacement. (Round your answer to 4 decimal places.)
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