The average number of years a person takes to complete a graduate degree program is 3....

   

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The average number of years a person takes to complete a graduate degree program is 3. The standard deviation is 4 months. Assume the variable is normally distributed. If an individual enrolls in the program, find the probability that it will take a. More than 4 years to complete the program b. Less than 3 years to complete the program c. Between 3.8 and 4.5 years to complete the program d. Between 2.5 and 3.1 years to complete the program 3. Find the values for each. a. ta/2 and n = 18 for the 99% confidence interval for the mean b. to/2 and n = 23 for the 95% confidence interval for the mean C. ta/2 andn = the mean 15 for the 98% confidence interval for d. to/2 and n 10 for the 90% confidence interval for the mean 20 for the 95% confidence interval for e. ta/2 andn= the mean The average number of years a person takes to complete a graduate degree program is 3. The standard deviation is 4 months. Assume the variable is normally distributed. If an individual enrolls in the program, find the probability that it will take a. More than 4 years to complete the program b. Less than 3 years to complete the program c. Between 3.8 and 4.5 years to complete the program d. Between 2.5 and 3.1 years to complete the program 3. Find the values for each. a. ta/2 and n = 18 for the 99% confidence interval for the mean b. to/2 and n = 23 for the 95% confidence interval for the mean C. ta/2 andn = the mean 15 for the 98% confidence interval for d. to/2 and n 10 for the 90% confidence interval for the mean 20 for the 95% confidence interval for e. ta/2 andn= the mean