Monday

September 1, 2014

September 1, 2014

Posted by **Sandy** on Friday, March 8, 2013 at 9:35pm.

Determine the P-value for this test. Is there sufficient evidence to justify the rejection of Ho at the a=0.01 level? Explain and show work.

- Statistics -
**MathGuru**, Monday, March 11, 2013 at 7:52pmUse a one-sample z-test.

z = (sample mean - population mean)/(standard deviation divided by the square root of the sample size)

With your data:

z = (522.3 - 530)/(29/√85) = ?

Finish the calculation.

Check a z-table at .01 level of significance for a two-tailed test (H1 does not show a specific direction; therefore, the test is two-tailed.)

If the z-test statistic exceeds the critical value from the z-table, reject the null and conclude H1 ≠ 530. If the z-test statistic does not exceed the critical value from the z-table, do not reject the null. If you determine the P-value, check the table using the z-test statistic. The P-value is the actual level of the test statistic.

I hope this will help get you started.

**Answer this Question**

**Related Questions**

STATS - Given a sample size of 18, with sample mean 660.3 and sample standard ...

Statistics - . A random sample is selected from a normal population with a mean ...

statistics - You are conducting an experiment to see if a given therapy works to...

STAT - Given a sample size of 18, with sample mean 660.3 and sample standard ...

STAT - Given a sample size of 18, with sample mean 660.3 and sample standard ...

Research skills - Place the following call numbers in the proper order based on ...

statistics - Given a sample size of 38, with sample mean 660.3 and sample ...

statistics - A random sample of 49 credit ratings is obtained, and it is found ...

statistics - A random sample of size 20 from a normal population will sample ...

Statistics - A random sample of size 20 from a normal population will sample ...