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the american red cross says that about 45% of the population has type O blood, 40% type A, 11% Type B. and the rest type AB. Someone volunteers to give blood, what is the probability that this donor has the complement of type O?
Using an investment game, the study demonstrated that people who inhaled oxytocin were more likely to give their money to a trustee compared to people who inhaled an inactive placebo. For this experimental study, identify the independent variable a..
As a part of your proposals. you need to submit demographic information to help demonstrate that the location chosen by the management teams will be a good investment.
What are the null and alternative hypothesis for this? What is a type II error in context of this test? Suppose that the researcher deceides not to reject the null hypothesis what sort of error might he be making?
Assume the cholesterol levels of adult American women are normally distributed with a mean of 190 mg/dL and a standard deviation of 26 mg/dL. What percent of adult women do you expect to have cholesterol levels at least 200 mg/dL?
Concrete blocks are to be used in the foundations of several buildings. The specifications state that the minimum arithmetic mean compressive strength of a sample of blocks must be 1,000 pounds per square inch (psi).
In a survey of women in a certain country (ages 20-29) the mean height was 64.5 inches with a standard deviation of 2.75 inches. What height represents the 90th percentile? What height represents the first quartile?
What is the probability that more than 265 will be relieved of the nasal condition?
Find the confidence interval for the mean price, μ, of all dealer sticker prices of new cars: for a confidence level of 90% in thousands of dollars:
She predicts correctly on 16 tosses. What is the probability of being correct 16 or more times by guessing? Does this probability seem to verify her claim?
In an evaluation of the medical lab, the manager is interested in the efficiency of three technicians when they process four routine blood tests.
Testing for Population mean - Based on this sample evidence, is Joan's supervisor correct? Use a = .05.
Computing the probability value using normal distribution - find the normal distribution
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