Eleven people were given 46 grams (1.6 ounces) of dark chocolate every day for two weeks, and their vascular health was measured before and after the two weeks. Larger numbers indicate greater vascular health, and the mean increase for the participants was 1.30 with standard deviation 2.32. Assume that a dot plot shows the data are reasonably symmetric with no extreme values.
Calculate AND interpret a 90% confidence interval for the mean increase in this measure of vascular health after two weeks of eating dark chocolate. Use StatKey to find the appropriate critical value, and include a screenshot of it in your assignment (this should not be a bootstrap confidence interval). If you crop your screenshot, make sure you don’t crop the degrees of freedom out.
I NEED STATKEY SCREENSHOT