Computing Probability and Deciding Extreme Samples

Computing Probability and Deciding Extreme Samples
Computing Probability and Deciding Extreme Samples

a random sample of n=9 scores is selected from a normal distribution with u= 80 and o=12. what is the probability that the sample mean will be between 76 and 84?

* 0.9974

*0.3830

* 0.2586

* 0.6426

a random sample of n= 16 scores is selected from a normal distribution with u= 500 and o= 200. for this sample which of the following is true?

* p(450<M<550)=0.95

*p(425<M<575)=0.95

*p(402<M<598)= 0.95

*p(490<M<510)=0.95

A sample is selected from a normal population with u= 50 and o= 12. which of the following samples would be considered extreme and unrepresentative for this population?

*M=53 and n=4

*M=53 and n= 16

*M=56 and n=4

*M=56 and n=16

find the cost of your paper