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"You are completing a one sample, right tailed test of proportions; level of significance is 0.01; calculated z-value is 2.50;
What is the critical z-value?What is the rejection criteria?What is the p-value?
What is the decision regarding H0? "
"Imagine you are conducting a left tailed test of proportions; level of significance is 0.05; calculated z-value is -2.00;
What is the critical z-value?
What is the p-value?
What is the decision regarding H0? and why ?"
What if the number of debilitating network viruses detected in a day at the firewalls of an Internet service provider within a certain geographic region is fueling a possible management decision to upgrade the detection system.
If the answer choices for each question are equally likely, find the probability of answering more than 4 questions correctly.
Find out optimal decision
The probability of contracting the kissing disease is .23 when one is exposed to a certain provocative environment. Sixty people are so exposed. What is the probability that no more than 10 are infected with this dreaded disease.
What is the probability the Time/CNN poll will provide a sample proportion within plus-or-minus 0.02 of the population proportion?
One of the herpetologists fears that pollution might be affecting the natural growth of the pythons. Do you think this sample result is unusually small? Explain. Show work.
A random sample of n=100 observations is selected from a population with mean of 29 and sandard deviation of 21. Approximate the probabilities shown below
Create the 99% confidence interval on difference of average ages for viewers of the two TV programs. How can you interpret interval?
When using the normal distribution (empirical rule) to obtain the bounds for 99.73 percent of the value in a population, the interval generally will be ______the interval obtained for the same percentage if Chebyshev's theorem is assumed., shorter..
What is the approximate probability that the mean score X of these students is 23 or higher? D) Which of your two normal probability calculations in (a) and (c) is more accurate? Why?
Formulate and test an appropriate set of hypotheses to determine if the machine can be qualified. Use a = 0.05. Find the P-value.
Which of the following statements is true regarding a nonparametric test? We assume that the data has been chosen from a normally distributed population
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