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The incidence of a certain disease in the population is estimated to be 1.5 %. That is, the probability that a randomly selected person having the disease is 0.015. A test for this disease is 90 % accurate; that is, it will positively identify a person who has the disease with a probability of 0.90. On the other hand, the test produces false positives (positively identifying a person who does not have the disease, as having the disease) with a probability of 0.05.
If the test indicates that a person does not have the disease, what is the probability that the individual actually has the disease?
consider the following table and use the formulas that are given for computing the correlation coefficient. give your
A radio station wants to know if residents in their area are in favor of a proposed tax increase. They invite listeners to call in to respond to the poll. 645 of the 800 who responded were against the tax.
question calculate sp the sum of products of deviations for the following scores. note both means are decimal values
Reliable Furniture is a family business that has been selling to retail customers in the Chicago area for many years. They advertise extensively on radio and TV, emphasizing their low prices and easy credit terms.
The combined production level should not exceed 1200 units per month. The demand for product II is no more than half the demand for product I.
A cell phone company collects data from a random sample of 500 households. The results indicate that 135 of the households would add an extra cellular number, provided it was offered at a reduced monthly cost.
Must you assume that the population amount of paint per can is normally distributed here? Explain
Find a 90% confidence interval for the population mean salary of such personnel. What is the margin of error.
consider the recurrence relation an 2an ? 1 3n.a write the associated homogeneous recurrence relation.b find the
A machine produces 3 inch nails. A sample of 100 nails is selected, and it is found that 25 are shorter than 3 inches. Find the 95% confidence interval on the proportion of all such nails that are shorter than 3 inches.
Using the scatter diagram (no calculations), would you estimate the linear correlation coefficient to be positive, close to zero, or negative?
I am writing a thesis and need a paired difference statistical analysis with a confidence level at 95% with t-value for alpha of 0.25
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