Reference no: EM13929120
1) A forced-choice design is often used to compare the attractiveness of pheromones to insects. A Y-tube is used. The pheromone is place on one branch; the control on the second branch; and the insect on the third branch. The insect then chooses one of the two branches. Suppose that 45 of 75 insects choose the pheromone branch. The 95% large-sample confidence interval for the proportion of the population that prefers the pheromone branch is:
(a) 0.60 ± 0.06. (b) 0.60 ± 0.11. (c) 0.60 ± 0.006. (d) 0.60 ± 0.14.
2) A forced-choice design is often used to compare the attractiveness of pheromones to insects. A Y-tube is used. The pheromone is placed on one branch, the control on the second branch, and the insect on the third branch. The insect then chooses one of the two branches. Suppose that 45 of 75 insects choose the pheromone branch. What is the z-score for testing the hypothesis of no-preference?
(a) 1.73 (b) 1.76 (c) 10.60 (d) 10.40
3) A forced-choice design is often used to compare the attractiveness of pheromones to insects. A Y-tube is used. The pheromone is placed on one branch, the control on the second branch, and the insect on the third branch. The insect then chooses one of the two branches. Suppose that 45 of 75 insects choose the pheromone branch. The null and alternative hypotheses for testing the hypothesis of no preference are:
(a) (b) (c) (d)
4) A forced-choice design is often used to compare the attractiveness of pheromones to insects. A Y-tube is used. The pheromone is placed on one branch, the control on the second branch, and the insect on the third branch. The insect then chooses one of the two branches. Suppose that 45 of 75 insects choose the pheromone branch. What is the p-value for the hypothesis test of no preference?
(a) 0.64 (b) 0.05 (c) 0.015 (d) 0.008
5( A forced-choice design is often used to compare the attractiveness of pheromones to insects. A Y-tube is used. The pheromone is placed on one branch, the control on the second branch, and the insect on the third branch. The insect then chooses one of the two branches. What sample size would be needed to ensure that the margin of error in the preference is less than 5 percentage points in more than 95% of experiments?
(a) 20 (b) 384 (c) 40 (d) 1500
6) A forced-choice design is often used to compare the attractiveness of pheromones to insects. A Y-tube is used. The pheromone is placed on one branch, the control on the second branch, and the insect on the third branch. The insect then chooses one of the two branches. Suppose that 45 of 75 insects choose the pheromone branch. The 95% plus-four confidence interval for the proportion of the population that prefers the pheromone branch is:
(a) 0.59 ± 0.06. (b) 0.59 ± 0.11. (c) 0.59 ± 0.006. (d) 0.59 ± 0.14.
7) A farmer wants to test the effectiveness of a pest control method in allowing strawberry blooms to yield marketable strawberries. Of a random sample of 100 blooms, 77 yield marketable strawberries. Is this evidence that two thirds or more of all blooms grown with this pest control method end up as marketable strawberries? The hypotheses for this problem are:
(a) . (b) . (c) . (d) .
8) A farmer wants to test the effectiveness of a pest control method in allowing strawberry blooms to yield marketable strawberries. Of a random sample of 100 blooms, 77 yield marketable strawberries. Is this evidence that two thirds or more of all blooms grown with this pest control method end up as marketable strawberries? The 95% large-sample confidence interval for the proportion of blooms that yield marketable strawberries is:
(a) 0.77 ± 0.042. (b) 0.77 ± 0.082. (c) 0.77 ± 0.0034. (d) 0.77 ± 0.0017.
9) A farmer wants to test the effectiveness of a pest control method in allowing strawberry blooms to yield marketable strawberries. In a pilot study of a random sample of 100 blooms, 77 yield marketable strawberries. What sample size should be used for a future study to ensure that the margin of error is less than 5 percentage points, 95% of the time?
(a) 1537 (b) 384 (c) 272 (d) 256
10) A farmer wants to test the effectiveness of a pest control method in allowing strawberry blooms to yield marketable strawberries. Of a random sample of 100 blooms, 77 yield marketable strawberries. Is this evidence that two thirds or more of all blooms grown with this pest control method end up as marketable strawberries? The z-statistic for the hypothesis is:
(a) 1.96. (b) 2.19. (c) 1.73. (d) 1.47.
|
Procedures use in a two-sample problem
: Which of the following would lead us to believe that the t procedures were not safe to use in a two-sample problem with 100 subjects in each group?
|
|
Describe the presence of the public or private sector
: Describe one of the national planning approaches covered in the annual report. Explain how prevention, protection, mitigation, response, and recovery were integrated into the approach. Describe the presence of the public or private sector in the an..
|
|
Operations and supply chain management
: Suppose that AlwaysRain Irrigation's marketing department will undertake an intense ad campaign for the bronze sprinklers, which are more expensive but also more durable than the plastic ones. Forecast demand for the next four years is
|
|
Examine the communication process
: Examine the communication process, the primary conflict levels, and the process for negotiating resolutions within organizations.
|
|
Confidence interval for the proportion of the population
: The insect then chooses one of the two branches. Suppose that 45 of 75 insects choose the pheromone branch. The 95% large-sample confidence interval for the proportion of the population that prefers the pheromone branch is:
|
|
Find the components of the convective momentum flux
: Find the components of the convective momentum flux pvv inside and outside the slot - Evaluate the xx-component of pvv.
|
|
Analysis class diagram focusing on problem domain
: Produce an analysis class diagram focusing on the problem domain. At this point it is not required to be fully attributed. However it is important that you attempt to model as many of the entities as possible
|
|
Classified as long term operational assets
: Which of the following items should be classified as long term operational assets?
|
|
In the lease versus buy decision, leasing is often preferabl
: Kelly Tubes is considering a merger with Reilly Tires. Reilly's market-determined beta is 0.9, and the firm currently is financed with 20% debt, at an interest rate of 8%, and its tax rate is 25%.
|