Blood glucose levels for the obese patients have a mean of 100 with a standard deviation of 15. A researcher thinks that a diet high in raw raw cornstarch will have a positive or negative effect on blood glucose levels. A sample of 30 patients who had tried the raw cornstarch diet have a mean glucose level of 140. Using a 95% confidence level, test the hypothesis that the raw cornstarch had an effect.

That table shows measurements (in invhes$ from cubes with different side lengths. which pairs of variables have a linear relationship? check all that apply

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)