HW10 Skeleton

10.1

• 1. hypothesis
• 2. hypothesis testing
• 3. null hypothesis
• 4. alternative hypothesis
• 5. Type I
• 6. Type II
• 7. Level of Significance
• 8. False
• 9. right tailed, parameter tested=mew
• 10. left tailed, parameter tested=p
• 11. two tailed, parameter tests= sigma

 

18. 1. H0: mew= 32 oz, HI: mew less than 32 oz

    2. Type I, rejecting that mew=32 when this is true

    3. Type II, do not reject H0: mew=32 when HI: mew is less than 32 oz is true

19. 1. HO: sigma=.7 psi, HI: sigma less than .7 psi

    2. Type I–rejecting sigma=.7 psi when this is true

    3. Type II–not rejecting sigma=.7 psi when sigma is less than .7 psi

 

36. 1. H0: mew=54 quarts, HI: mew is less than 54 quarts

    2. The mean consumption of popcorn annually by Americans is less than 54 quarts

    3. Type II, not a high probability

37. 1. H0: p=.028, HI: p greater than .028

    2. There is not sufficient evidence to conclude that more than 2.8% of students at the counselor’s school use e-cigs

    3. Type II–null hypothesis was not rejected when the alternative hypothesis was true.