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 t-test:

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 t-table using n - 1 for degrees of freedom for a one-tailed 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

- 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 one-proportion ...
- Business Statistics - In a goodness-of-fit 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 one-sample ...
- 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 ...
- statistics - 27. Consider the following hypothesis test. H0: µ = 15 Ha: µ ≠...

More Related Questions