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In a battleground state, 36% of all voters are Republicans. Assuming that there are only two parties- Democrat and Republican, if two voters are randomly selected for a telephone survey, what is the probability that they one is a Democrat followed by a Republican? Round your answer to 4 decimal places.
If samples of size 224 were repeatedly selected from the population of children born to mothers with HIV antibody, what would be the mean number of infected children per sample?
Prove that if x + y is even, then the product xy(x + y)(x - y) is divisible by 24, and that without this restriction, 4xy(x- y)(x + y) is divisible by 24.
What is the probability that he will answer all questions correctly?
The average age in the sample was 22.5 years with a standard deviation of 5 years. Construct a 95% confidence level. What is the probability that the sample mean will be more than $306.60?
At the .01 significance level, can the manufacturer conclude that the price reduction resulted in an increase in sales?
Patient does not have disease occurs 1% of the time. If a randomly selected individual is positive what is the probability that the individual has the disease?
Convert the given fraction into its other two forms? Evaluate expression. Use a calculator to check.
Is the dealer's mean significantly greater than the national average of 30,000 miles for 2-year leased vehicles, using the 10 percent level of significance?
What is the probability that a simple random sample of automobile insurance policies will have a sample mean within 25 of the popluation mean.
Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer
To avoid losing money, the top 5% (the heaviest 5%) is labeled overweight. A) What proportion of boxes is underweight?
Test whether the mean weight is greater than 16 ounces with P-value approach.
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