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The sum of two numbers is less then 27. The second number is 7 less then the first. What are the possible values for the first and second number - in the answer denote the first number by x
Blood type AB is found in only 3% of the population. If 320 people are chosen at random, find the probability of the following. (Round your answers to four decimal places.)
Be able to conduct a one-tailed hypothesis test for the mean at the .025 significance level. State the null and alternative. State the critical value. Draw a diagram. Provide the computation of the test statistics. State your decision in terms of ..
A random sample of 25 statistics examinations was taken. The average score in the sample was 76 with a variance of 144. Assuming the scores are normally distributed, the 99% confidence interval for the population average examination score is:
The number of messages sent to a computer bulletin board is a Poisson random variable with a mean of 5 messages per hour.
If a lot is known to contain 10% defective items, find out the probability that lot will be rejected? Accepted?
Given same values n=20, p=0.6, and x=17, calculate probability of x successes in n independent trails of experiment.
A state executive claims that the average number of acres in western Pennsylvania State Park is less than 2000 acres. A random sample of five parks is selected, and the number of acres is shown. At alpha=.01, is there enough evidence to support th..
Using these data, construct a 99% confidence interval to estimate the average number of days and excavator is rented to a client, and assume the number of days per rental is normally distributed in the population.
0.8 of all college students like the idea of a new curriculum. If we select 87 students (ASSUME INDEPENDENCE), what is the Standard Deviation of the Probability Distribution that would list the number of students.
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
At the .05 significance level, can we conclude that the guideline is still reasonable?
Briefly identify and contrast the methods used by the psychoanalytic perspective, the humanistic perspective, and the trait perspective to assess personality.
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