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Finding the probability for the given set of information
Suppose a rare disease infects one out of every1000 people in a population. Suppose there is a good, but not perfect test for this disease: if a person has the disease, the test comes back positives 99 percent of the time. However, the test also produces some false positives: 2 percent of uninfected people also test positive. what are the probability of you having the disease?
At.05 significance level, can we conclude that larger proportion of the agents think the economy is expanding this month?
Assuming that these are a random sample of all publicly traded companies, construct a 95 % confidence interval for the overall noncompliance proportion.
No, there is not sufficient information to reject the hypothesis that the proportion of cats and the proportion of dogs that sleep more than 10 hours per day are the same because the test value -0.65 is inside the acceptance region (-1.96,1.96).
He would like to estimate with .05 of the true proportion with a confidence level of 90%. What is the sample size needed?
A confidence interval increases in width as:
Identify the sampling distribution to be used: the standard normal distribution or the Student's t distribution. Find the critical value(s).
Which of the given properties doesn't apply to theoretical normal distribution?
What are the possible combinations of coins that Sanjay could have received in change?
If the basket ball player is a 74% free throw shooter, then, on average, how many free throws will he or she make in a game with eight free throw attempts?
For each of following data sets, select the most suitable response from choices below the table. A strong negative linear relation exists.
If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph, how large a sample size must be taken?
Compute the probability that randomly chosen student with a Master's degree majored in English or mathematics?
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