Statistics: Hypothesis Testing for Mean

Two important sample statistics are…

The area of the shaded region in the graph is …

What are three components of hypothesis testing?

• Null hypothesis

• Confidence Interval

• Test statistic

• Significance Level

Determine the correct order of hypothesis testing.

A. State Null Hypothesis

B. State Conclusion

C. Compare P-value and Significance Level

D. Compute Test Statistic

• D-A-B-C

• A-C-D-B

• A-D-C-B

• D-C-B-A

What is null hypothesis?

• A claim about a sample statistic

• A statement that summarizes the data

• A non valid hypothesis

• A claim about a population parameter

What is P-value?

• The probability value whether the null hypothesis is correct

• The probability value that determines the rejection of the null hypothesis

• The probability value that corresponds to the test statistic

• The probability of error in making conclusion

• A probability of error in making conclusion

• The level that determine the trust-worthiness of the conclusion

• A probability related to the test statistic

• A positive number that determine the significance of the conclusion

• There is sufficient evidence to accept the null hypothesis

• There is insufficient evidence to accept the null hypothesis

• There is insufficient evidence to reject the null hypothesis

• There is sufficient evidence to reject the null hypothesis

In the conclusion of a hypothesis testing, we say “There is sufficient evidence to …”. What does this evidence refer to?

• Population mean

• Sample mean

• Sample statistic

• Significance Level