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12. A researcher wants to determine the effect that smoking has on resting heart rate. She randomly selects seven individuals from three categories: (1) nonsmokers, (2) light smokers (fewer than 10 cigarettes per day), and (3) heavy smokers (10 or more cigarettes per day) and obtains the following heart rate data (beats per minute): Nonsmokers 70 58 51 56 53 53 65 Light Smokers 67 75 65 78 62 70 73 Heavy smokers 79 80 77 77 86 68 83 Test the null hypothesis that the mean resting heart rate for each category is the same at the ? = 0.05 level of significance. The requirements for one-way ANOVA are satisfied. Answer the questions 12 through 15 12. Write the Null hypothesis H0: ?_1= ?_2= ?_3= ?_4 H1: At least one mean is different from others H0: ?_1= ?_2= ?_3 H1: At least two means are different from others

          12. A researcher wants to determine the effect that smoking has on resting heart rate. She randomly selects seven individuals from three categories: (1) nonsmokers, (2) light smokers (fewer than 10 cigarettes per day), and (3) heavy smokers (10 or more cigarettes per day) and obtains the following heart rate data (beats per minute):

Nonsmokers 70 58 51 56 53 53 65

Light Smokers 67 75 65 78 62 70 73

Heavy smokers 79 80 77 77 86 68 83

Test the null hypothesis that the mean resting heart rate for each category is the same at the ? = 0.05 level of significance. The requirements for one-way ANOVA are satisfied. Answer the questions 12 through 15

12. Write the Null hypothesis

H0: ?_1= ?_2= ?_3= ?_4
H1: At least one mean is different from others
H0: ?_1= ?_2= ?_3
H1: At least two means are different from others

12. A researcher wants to determine the effect that smoking has on resting heart rate. She randomly selects seven individuals from three categories: (1) nonsmokers, (2) light smokers (fewer than 10 cigarettes per day), and (3) heavy smokers (10 or more cigarettes per day) and obtains the following heart rate data (beats per minute):

Nonsmokers 70 58 51 56 53 53 65

Light Smokers 67 75 65 78 62 70 73

Heavy smokers 79 80 77 77 86 68 83

Test the null hypothesis that the mean resting heart rate for each category is the same at the ? = 0.05 level of significance. The requirements for one-way ANOVA are satisfied. Answer the questions 12 through 15

12. Write the Null hypothesis

H0: ?1= ?2= ?3= ?4
H1: At least one mean is different from others
H0: ?1= ?2= ?3
H1: At least two means are different from others

Added by Ismael L.

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