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A population has a normal distribution with a mean of 50 and a standard deviation of 10. If a random sample of size 9 is taken from the population, then what is the probability that this sample mean will be between 48 and 54.
A. 0.060
B. 0.228.
C. 0.385.
D. 0.611
Can someone in this universe help me with the attached assignment of recoding variables using SPSS?
Fifty sampling units of equal size were inspected, and the number of nonconforming situations was recorded. The total number of instances was 449.
If we assume that the errors made by rounding off are iid and have a uniform distribution over the interval ( - ~, ~), compute approximately the probability that the sum of the integers is within two units of the true sum.
The random sample is collected from 13 students who attending a large university on grade point averages of sophomore and junior.
Question:1- Given that z is a standard Normal random variable, find following probabilities:
Normal distribution with a mean of 240 minutes and a standard deviation of 40 minutes, what is the probability of a procedure of this type lasting less than 200 minutes?
Develop a 95% confidence interval using data from this study. 2. Perform a hypothesis testing using data from this study. (show all the the appropriate steps). 3. Suggest another statistical technique(s) for the purpose of this study.
You have picked out the carton of 1 dozen eggs (that's 12 eggs) at grocery store. Find out the probability that at most two of eggs in carton are cracked.
She has been a victim of domestic abuse at some point in her life. Find the probability that more than 22 of the women sampled have not been the victim of domestic abuse.
Against the wind a commercial airline in South America flew 504 miles in 3.5 hours. With a tailwind the return trip took 3 hours. What was the speed of the plane in still air? What was the speed of wind?
What are the cultural issues that may contribute to depression as well as cultural issues associated with treatment of depression.
Write the null and alternative hypotheses about m, the mean number of cars per day that cross the Tappan Zee Bridge.- For the hypotheses in part (a), describe the type I and type II errors.
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