One Sample Hypothesis Testing Review

• Z Test

• T Test

• 1-Prop Z Test

• X² Test

• Reject the Null

• Fail to Reject the Null

• Accept the Null

• There is enough evidence to reject the claim that the percent of families who own pets is different than 60%

• There is not enough evidence to support the claim that the percent of families who own pets is 60%

• There is enough evidence to support the claim that the percent of families who own pets is different than 60%

• There is not enough evidence to support the claim that the percent of families who own pets is different than 60%

A recruiter for the Super Teachers School Board advertised that the average teacher's salary in a certain competing district is less than what his district offers, $50,000. A random sample of 50 teachers from the competing district had a mean annual salary of $48,300. The population standard deviation is known to be $8,000.  Use a 0.01 level of significance to test the recruiter's claim.  

Choose the correct Null and Alternate Hypothesis Statements. 

A recruiter for the Super Teachers School Board advertised that the average teacher's salary in a certain competing district is less than what his district offers, $50,000. A random sample of 50 teachers from the competing district had a mean annual salary of $48,300. The population standard deviation is known to be $8,000. Use a 0.01 level of significance to test the recruiter's claim.

What type of test should you run?

• Z test

• T test

• 1-Prop Z test

• X² test

A recruiter for the Super Teachers School Board advertised that the average teacher's salary in a certain competing district is less than what his district offers, $50,000. A random sample of 50 teachers from the competing district had a mean annual salary of $48,300. The population standard deviation is known to be $8,000. Use a 0.01 level of significance to test the recruiter's claim.

What is the p-value? Round to 4 decimal places!!

A recruiter for the Super Teachers School Board advertised that the average teacher's salary in a certain competing district is less than what his district offers, $50,000. A random sample of 50 teachers from the competing district had a mean annual salary of $48,300. The population standard deviation is known to be $8,000. Use a 0.01 level of significance to test the recruiter's claim.

What is your decision?

• Reject the Null

• Fail to Reject the Null

• Accept the Null

A recruiter for the Super Teachers School Board advertised that the average teacher's salary in a certain competing district is less than what his district offers, $50,000. A random sample of 50 teachers from the competing district had a mean annual salary of $48,300. The population standard deviation is known to be $8,000. Use a 0.01 level of significance to test the recruiter's claim.

Choose the correct conclusion.

• There is enough evidence to support the claim that the average teacher's salary in the competing district is less than $50,000.

• There is not enough evidence to support the claim that the average teacher's salary in the competing district is less than $50,000.

• There is enough evidence to support the claim that the average teacher's salary in the competing district is more than $50,000.

• There is not enough evidence to support the claim that the average teacher's salary in the competing district is more than $50,000.