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Assume that the significance level is a=0.05. use the given information to find the p-value and the critical value(s).
With H1: p=1/4, the test statistic is z = - 1.74.
(A). P-value= ____.
(B). The critical value(s) is/are ____.
The average cost for service provided per person per day is random variable with normal distribution of N$ 100 and a standard deviation of N$ 22. What is the probability that the cost will be at least N$ 127 per day per person.
What information is provided by the numeral value of the Pearson correlation? What is the major distinction between the Pearson and Spear man correlations?
Half of the 1000 emloyees were involved in some type of exercise. What is the probability that an employee will have a cold next year?
For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.
How can the binomial distribution be used in a business situation? What type of data would you use and what would you learn from this?
An automobile assembly line operation has a scheduled mean completion time,u , of 12.6 minutes. The standard deviation of completion times is 1.8 minutes.
a researcher reports that the correlation between age and physical health of adults over 50 is -.69. one can conclude
The lower limit for a 95% confidence interval for the population proportion if a sample of size 200 had a 40 success is.
A confidence interval estimate for the population mean is given to be (40.45, 49.24). If the standard deviation is 11.159 and the sample size is 35, answer each of the following (show all work):
a box of 10 gloves contains three left-handed gloves and seven right-handed gloves. complete parts a through d.a. if
find the z values based on a standard normal distribution for an 86 confidence interval for a proportion for a 78
an english teacher has been teaching a sixth grade composition class for many years. he has the feeling that over the
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