a university president believes over the past few years the average age of students attending has changed. To test this hypothesis he age of 150 students were randomly sampled and their mean age was found to be 23.5 years. A number of years prior to this the university found the population mean age for all students was 22.4 with a population standard deviation of 76. Set alpha to .05 and determine whether the average age of students has changed.
1write the experimental hypotheses for this problem
2write the statistical hypotheses for this problem

Question

a university president believes over the past few years the average age of students attending has changed. To test this hypothesis he age of 150 students were randomly sampled and their mean age was found to be 23.5 years.  A number of years prior to this the university found the population mean age for all students was 22.4 with a population standard deviation of 76.  Set alpha to .05 and determine whether the average age of students has changed.
1write the experimental hypotheses for this problem
2write the statistical hypotheses for this problem

anonymous · Answer

3 draw a picture of the distribution and lable the parts of this distribution
4 on the picture of he distribution you drew in item "3" above write the critical values
5 Calculate the appropriate staistic, ie Z and show your work
6on the picture of the distribution you drew in item 3 above write the valuesof the Z you just calculated
7Write your conclusion in words and in statistical symbols

anonymous · Answer

I am in need of some help here