Posted by daniel on Tuesday, April 19, 2011 at 11:57pm.
Use the data given to test the following hupotheses. Assume the data are normally distributed in the population.
Ho: M=7.48 Ha:m>7.48
xbar = 6.91, n=24, sigma=1.21,alpha=.01

statistics  MathGuru, Wednesday, April 20, 2011 at 8:13pm
Since the sample size is small, you can use a ttest:
t = (sample mean  population mean)/(standard deviation divided by the square root of the sample size)
With your data:
t = (6.91  7.48)/(1.21/√24)
Finish the calculation.
Check a ttable using n  1 for degrees of freedom for a onetailed test at .01 level of significance (the alternate hypothesis is showing a specific direction). If the test statistic exceeds the critical value from the table, reject the null. If the test statistic does not exceed the critical value from the table, do not reject the null.
You can draw your conclusions from there.
I hope this will help get you started.

statistics  Anonymous, Saturday, May 23, 2015 at 3:29pm
2.28
Answer This Question
Related Questions
 Behavioral Statistics Help!  The majority of the data is normally distributed ...
 statistics  Consider the test of hypothesis for the equality of two population ...
 Stats  Suppose the following data are selected randomly from a population of ...
 statistics  A researcher wants to carry out a hypothesis test involving the ...
 Statistics  Which of the following criteria must be met to do a oneproportion ...
 Business Statistics  In a goodnessoffit test, the null hypothesis states that...
 business statistics  the following data values are a simple random sample form ...
 statistics  Which of the following criteria must be met to do a onesample test...
 statistics  okay heres the question and the answer I have, but Im not sure its ...
 Statistics  Problem 1 Use the Old Faithful data labelled Duration as a sample ...
More Related Questions