The article "Well-Fed Crickets Bowl Maidens Over" (Nature Science Update, February 11, 1999) reported that female field crickets are attracted to m with high chirp rates and hypothesized that chirp rate is related to nutritional status. The usual chirp rate for male field crickets was reported to vary around a mean of 60 chirps per second. To investigate whether the chirp rate was related to nutritional status, investigators fed 25 male crickets a h protein diet for 8 days, after which chirp rate was measured. Let: The parameter u be the mean chirp rate of male crickets on a high protein diet for 8 days. Given: • The mean chirp rate for the random sample of crickets on the high protein diet was reported to be 66.6 chirps per second with a standard deviat of 16. Research Question: Is there convincing evidence that the mean chirp rate for crickets on a high protein diet implies an advantage in attracting the ladies? • I t is known that the researchers did not want to risk a Type l error of more than 5%.
The article "Well-Fed Crickets Bowl Maidens Over" (Nature Science Update, February 11, 1999) reported that female field crickets are attracted to m with high chirp rates and hypothesized that chirp rate is related to nutritional status. The usual chirp rate for male field crickets was reported to vary around a mean of 60 chirps per second. To investigate whether the chirp rate was related to nutritional status, investigators fed 25 male crickets a h protein diet for 8 days, after which chirp rate was measured. Let: The parameter u be the mean chirp rate of male crickets on a high protein diet for 8 days. Given: • The mean chirp rate for the random sample of crickets on the high protein diet was reported to be 66.6 chirps per second with a standard deviat of 16. Research Question: Is there convincing evidence that the mean chirp rate for crickets on a high protein diet implies an advantage in attracting the ladies? • I t is known that the researchers did not want to risk a Type l error of more than 5%.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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