A nutritionist is interested in whether there is a differenc…
A nutritionist is interested in whether there is a difference in the mean daily protein intake of vegetarians and non-vegetarians. The nutritionist randomly selected 28 vegetarians and 32 non-vegetarians and recorded their daily protein intake. Vegetarians had an average protein intake of 62.3 grams with a standard deviation of 8.1 grams. Non-vegetarians had an average protein intake of 68.7 grams with a standard deviation of 9.2 grams. Assume the population standard deviations are not equal. Use a 0.05 level of significance to test whether there is a difference in mean daily protein intake.(1 = Vegetarians, 2 = Non-vegetarians) a. What type of test is this? b. Given the following information in the table below, make a decision: The p-value = . Thus, the p-value is alpha (the significance level), so we . There enough evidence to conclude that there is a difference in the mean daily protein intake of vegetarians and non-vegetarians.