# Question: Based on the sample data below is the average Medicare

Based on the sample data below, is the average Medicare spending in the northern region significantly less than the average spending in the southern region at the 1 percent level?

(a) State the hypotheses and decision rule.

(b) Find the test statistic assuming unequal variances.

(c) State your conclusion. Is this a strong conclusion?

(d) Can you suggest reasons why a difference might exist?

(a) State the hypotheses and decision rule.

(b) Find the test statistic assuming unequal variances.

(c) State your conclusion. Is this a strong conclusion?

(d) Can you suggest reasons why a difference might exist?

## Relevant Questions

In a 15-day survey of air pollution in two European capitals, the mean particulate count (micrograms per cubic meter) in Athens was 39.5 with a standard deviation of 3.75, while in London the mean was 31.5 with a standard ...In MiniCase 10.2, we found that the mean methane gas emissions for the two pneumatic controller manufacturers were not equal. When choosing formula 10.3 to calculate the t statistic, we assumed that their variances were not ...Nine homes are chosen at random from real estate listings in two suburban neighborhoods, and the square footage of each home is noted in the following table. At the .10 level of significance, is there a difference between ...One group of accounting students used simulation programs, while another group received a tutorial. Scores on an exam were compared. (a) Construct a 90 percent confidence interval for the true difference in mean scores, ...Refer to Exercise 11.5. Which pairs of mean scrap rates differ significantly (3 plants)? Exercise 11.5 Scrap rates per thousand (parts whose defects cannot be reworked) are compared for 5 randomly selected days at three ...Post your question