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The Total Cholesterol levels of a sample of men aged 35-44 are normally distributed with the mean of 203 milligrams per deciliter and a standard deviation of 37.4 milligrams per deciliter.
(a) What percent of men have a total cholesterol level less then 219 milligrams per deciliter of blood?
(b) if 257 men in the 35-44 age group are randomly selected, about how many would you expect to have a total cholesterol level greater than 268 milligrams per deciliter of blood?
The Type 1 error states the probability of being wrong whenever:
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Standardized measures seem to indicate that the average level of anxiety has increased gradually over the past 50 years. In the 1950s, the average score on the child manifest anxiety scale was µ=15.1. A sample of n=16 of today's children produces ..
In 1965, a newspaper carried a story about a high school student who reported getting 9207 heads and 8743 tails in 17,950 coin tosses. Is this a significant discrepancy from the null hypothesis H 0 = 1/2.
Estimate a test statistic for null hypothesis H0: μ = 30 against two-sided alternative hypothesis H1 : μ ≠ 30, and by plotting this on its reference distribution.
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a rehabilitation center researcher was interested in examining the relationship between physical fitness prior to
Conduct a hypothesis test to verify if the claim that a bottle contains less than sixteen (16) ounces is supported. Clearly state the logic of your test, the calculations, and the conclusion of your test.
In teaching the role of statistical application in Health Science, the importance of reliable and valid data is very critical in research process.
1. A. What the mean and standard deviation (SD) of the Close column in your data set? B. If a person bought 1 share of Google stock within the last year, what is the probability that the stock on that day closed at less than the mean for that year..
if the same mean is 11 the hypothesized population mean 10 and the population standard deviation is 4 compute the test
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