# Question: The normal range for a widely accepted measure of body

The normal range for a widely accepted measure of body size, the body mass index (BMI), ranges from 18.5 to 25. Using the mid-range BMI score of 21.75 as the null hypothesized value for the population mean, test this hypothesis at the .01 level of significance given a random sample of 30 weight-watcher participants who show a mean BMI 5 22.2 and a standard deviation of 3.1.

**View Solution:**## Answer to relevant Questions

A production line at a candy plant is designed to yield 2- pound boxes of assorted candies whose weights in fact follow a normal distribution with a mean of 33 ounces and a standard deviation of .30 ounce. A random sample of ...For a projected one-tailed test, lower tail critical, at the .05 level of significance, construct two rough graphs. Each graph should show the sector in the true sampling distribution that produces a type II error and the ...Even though the population standard deviation is unknown, an investigator uses z rather than the more appropriate t to test a hypothesis at the .05 level of significance. (a) Is the true level of significance larger or ...A researcher randomly assigns college freshmen to either of two experimental conditions. Because both groups consist of college freshmen, someone claims that it is appropriate to use a t test for the two related samples. ...Given the aggression scores below for Outcome A of the sleep deprivation experiment, verify that, as suggested earlier, these mean differences shouldnâ€™t be taken seriously by testing the null hypothesis at the .05 level of ...Post your question