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a prisoner escapes from jail. There are 3 roads. If the prisoner selcts road a to an escape, the probability that she succeeds is 1/4. If she selects road b, the probability is 1/5. If she selects road c the probability is 1-6. furthermore, the probability of selecting each of the roads are the same. It is 1/3. If the prisoner succeeds on her escape, what is the rpobability that she made good on her escape by using road b.
The F-test cannot be used to answer whether or not there is a significant difference between the means.
Psychologists once measured 77 variables on a sample of schizophrenic people and a sample of people who were not schizophrenic. They compared the two samples using 77 separate significance tests.
Assume that replacement time for TVs are normally distributed with a mean of 8.2 years and a standard deviation of 1.1 years. The probability a randomly selected TV will have replacement time less than 5.5 years to be .0071.
In general, determine the standard score a measure of?
The average hourly wage of workers in a fast food restaurant is $5.85 with a standard deviation of $0.35. Assume that the distribution is normal.
Compute average daily rainfall in the week and for weekends. Get the average of weekdays' rainfalls and average of weekend's rainfalls.
Use the t-distribution table to find the critical value(s) for the indicated alternative hypothesis, level of significance ?, and sample sizes n? and n?.
Compute the mean, variance and standard deviation for the grouped data. Based on the previous answer, how much could the realtor expect to make if he sells 3 houses?
The probability distribution for the possible results of an experiment is given, Determine the mean of the distribution.
40 were in favor of the Independent candidate, and 140 were undecided. At a 1% level of significance, test to see if the proportion of voters has changed. Calculate the value of the Chi-Square Test Statistic for this problem. What is it?
Describe your answer to a person who has never had a course in statistics.
In a large section of statistics class, the points for the final exams are normally distributed with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule.
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