Preliminary Calculations. Please complete the worksheet.

Project Part II Worksheet

(Links to an external site.)

Complete the summary table for 1. Live Births, 2. Deaths, 3. Marriages, and 4. Divorces highlighting the mean, median, sample/population standard deviation, n = number of states that submitted data for each the data sets.

Summary Table for _________

Mean

Median

Standard Deviation

n (Number of States who submitted Data)

Hypothesis Testing

With the information that you gather from the summary tables, test the following (you can use excel when appropriate):

Determine if there is sufficient evidence to conclude the average amount of births is over 5000 in the United States and territories at the 0.05 level of significance.

Determine if there is sufficient evidence to conclude the average amount of deaths is equal to 6000 in the United States and territories at the 0.10 level of significance.

Determine if there is sufficient evidence to conclude the average amount of marriages is greater or equal to 2500 in the United States and territories at the .05 level of significance.

Determine if there is sufficient evidence to conclude the average amount of divorces is less than or equal to 4000 in the United States and territories at the 0.10 level of significance.

For each of the tests above, in your report, be sure to—

Clearly state a null and alternative hypothesis

Give the value of the test statistic

Report the P-Value

Clearly state your conclusion (Reject the Null or Fail to Reject the Null)

Explain what your conclusion means in context of the data.

4. Make your OWN Claim (You are completing ONE more Hypothesis Test)

Lastly, propose and conduct your own test of hypothesis.

a) Pick one data set: Births, Deaths, Marriages OR Divorces.

b) Write a claim about the data set.

c) For your claim—

Clearly state a null and alternative hypothesis

Give the value of the test statistic

Report the P-Value

Clearly state your conclusion (Reject the Null or Fail to Reject the Null)

Explain what your conclusion means in context of the data.

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