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Basically trying to figure out once you get the test statistics how you determine critical value through the Table chart.
Trying to find critical value for test statistics of 2.36 with 10 subjects, 7 had higher scores, 2 had lower scores, and 1 score did not change. Using the traditional method of hypothesis testing. Use an alpha level of .01.
Trying to find the critical value of scores of girls are smarter than boys on tests. Assume the degrees of freedom for this problem is 27. The test statistic was 2.69 (alpha equals .05). If the mean of the boys score was lower than the mean of the girls score can she reject her null hypothesis?
Finding critical value, t score of randomly selected 217 students and found that they had education with a mean of 7.89 years and a standard deviation of 3.67 years. They also randomly selected 152 faculty and found that they had education with a mean of 5.99 years and a standard deviation of 3.65 years. Use a 0.01 significance level to test the claim that student cars are older than faculty cars.
A side effect of a certain anesthetic used in surgery is the hiccups, which occurs in about 10 percent of the cases. If three patients are scheduled for surgery today and are to be administered this anesthetic, compute the probability that:
Consider a normal population with µ = 25 and σ = 7.0. (A) Calculate the standard score for a value x of 23.
A popular snack is packed by machine into 9-ounce boxes. The distribution of box weights is normally distributed with a mean of 9 ounces and a variance of 0.01 ounces. What is the probability of randomly selecting a box containing less than 8.9 ou..
In a clinical study of an allergy drug, 108 of the 203 subjects reported experiencing significant relief from their symptoms. Using a significance level of .01, test the claim that more than half of all those using the drug experienced relief.
The average speed of greyhound dogs is about 18.8 meters per second. A particular greyhound breeder claims that her dogs are faster than the average greyhound. In a sample of 45 dogs, they ran, on average, 19.2 meters per second with a standard de..
Suppose you want to conduct a survey of the attitude of psychology graduate students studying clinical psychology toward psychoanalytic methods of psychotherapy.
The manufacturer of the ColorSmart-5000 television set claims that 95 percent of its sets last at least five years without needing a single repair.
What is the probability that a random person has an IQ between 85 and 115? Find the 90th percentile of the IQ distribution.
Conduct an analysis of variance
Quality control engineer has been checking output by almost continuous sampling as abnormal condition began. Determine the probability that in sample of 10 pieces.
In the bank customer waiting time case, a bank manager had developed a new system to reduce the time customers spend waiting to be served by tellers during peak business hours.
A Manager needs to decide between two machines to put into market following a Weibull distribution. Machine X test unit cost $3000 with beta=3 and theta=500 Machine Y test unit cost $2000 with beta=3 and theta=400
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