Question

Pesticide danger: One of the factors that determines the degree of risk a pesticide poses to human health is the rate at which a pesticide is absorbed into skin after contact. An important question is whether the amount in the skin continues to increase with the length of the contact, or whether it increases for only a short time before leveling off. To investigate this, measured amounts of a certain pesticide were applied to 20 samples of rat skin. Four skins were analyzed at each of the time intervals 1, 2, 4, 10, and 24 hours. The amounts of the chemical (in micrograms) that were in the skin are given in the following table. Duration Amounts Absorbed 1.8 1.6 2.0 2.0 1.8 2.3 2.3 2.0 1.8 2.3 2.0 1.8 2.2 2.3 2.6 2.0 2.1 1.7 1.7 2.4 Send data Part 1 of 2 (a) Construct an ANOVA table. Round your answers to four decimal places. One-way ANOVA: Pesticide Amount Source Duration Error Total Skip Part Check Answer Save For Later Submit Assig 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use 5.jpg IMG2525.jpg IMG 2524.jpg IMG_2523.jpg IMG_2522.jpg

Answer 1

For the given data using Anova single factor in Excel we get output as  

ANOVA
Source	SS	df	MS	F	P
Duration	0.658	4	0.1645	3.301	0.0396
Error	0.7475	15	0.049833
Total	1.4055	19