2.) A packaging company advertises that their product weighs on average 16 oz. You feel the box is muchlighter than this, so you run a hypothesis test.a.) State the hypotheses.b.) What would be a type l error in this situation?c.) How could you decrease your chance of making a type I error?d.) What would be a type II error in this situation?

Answered: Image /qna-images/answer/af63cc76-0dc5-47d5-abdb-a165a3ecdaff.jpg

Answered: 2.) A packaging company advertises that…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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When is there a risk of a Type I error? Question 8 options: Whenever H, is rejected Whenever H, is rejected Whenever the decision is "fail to reject H," The risk of a Type I error is independent of the decision from a hypothesis test.
When a customer has a drier delivered to their home, they will receive $50 off if the dryer has any dents or scratches. A randomly selected drier may or may not have any dents or scratches. The hypotheses can be stated as follows. H,: The dryer is not dented or scratched. H;: The dryer is dented or scratched. Which of the following best describes a Type I error? concluding the dryer is dented or scratched when it really is concluding the dryer is dented or scratched when it really is not concluding the dryer is not dented or scratched when it really is concluding the dryer is not dented or scratched when it really is not It is not possible to make a Type I error in this situation.
For which hypothesis is the symbol H1 used?
A very large study showed that aspirin reduced the rate of first heart attacks by 33%. A pharmaceutical company thinks it has a drug that will be more effective than aspirin, and plans to do a randomized clinical trial to test the new drug. Complete parts a through d below. O C. The new drug is as effective as aspirin. O D. The new drug is less effective than aspirin. b) What is their alternative hypothesis? A. The new drug is less effective than aspirin. O B. The new drug is not more effective than aspirin. O c. The new drug is as effective as aspirin. O D. The new drug is more effective than aspirin. c) The company conducted the study and found that the group using the new drug had somewhat fewer heart attacks than those in the aspirin group. The P-value from the hypothesis test was 0.22. What do you conclude? O A. There is evidence to conclude that the alternative hypothesis is true because the P-value was so large. O B. There is evidence to conclude that the alternative hypothesis…
A hospital claims that the proportion of full-term babies born in the hospital who weigh less than seven pounds is no more than 44%. Suppose that we want to carry out a hypothesis test for this claim, suspecting otherwise. State the null hypothesis Ho and the alternative hypothesis H, that we would use for this test. Ho: 0 H: ] Aa OSO
We reject the null hypothesis when the probability of obtaining a sample mean more extreme than the one observed is a) high b) estimated c) low d) known The correct answer is c: low. Please explain why and provide a solution to the question.
It is clairmeu that the proportion of high school students in the United States who use computers for educational purposes is at most 72%. Suppose that we have reason to believe otherwise and wish to carry out a hypothesis test for this claim. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. H, :0 H, :0 O
20. Which of the following is a null hypothesis? a. Pregnant women who drink cranberry juice will have lower urine bacterial counts than those who do not drink cranberry juice. b. The urine bacterial count of pregnant women who drink cranberry juice will be lower or equal to that of pregnant women who do not drink the juice. c. There will be a difference between ingestion of cranberry juice and among pregnant women who do and do not have high urine bacterial counts.
Answer portion B)
The smaller the value of your Z obtained: a. The more probable that you will be able to reject the null hypothesis b. The more probable that you will fail to reject the null hypothesis c. The smaller your probability of making a Type II error d. The smaller your probability of making a Type I error
7.54 [Data Set: TRAPS] LOBSTER TRAP PLACEMENT. Refer to the Bulletin of Marine Science (April 2010) observational study of lobster trap placement by teams fishing for the red spiny lobster in Baja California Sur, Mexico, Exercise 6.1270. Trap-spacing measurements (in meters) for a sample of seven teams of red spiny lobster fishermen are reproduced in the accompanying table. Let u represent the average of the trap-spacing measurements for the population of red spiny lobster fishermen fishing in Baja California Sur, Mexico. In Exercise 6.29O you computed the mean and standard deviation of the sample measurements to be = 89.9 meters and s = 11.6 meters, respectively. Suppose you want to determine if the true value of u differs from 95 meters. 93 99 105 94 82 70 86 Source: Based on G. G. Shester, "Explaining Catch Variation Among Baja California Lobster Fishers Through Spatial Analysis of Trap-Placement Decisions," Bulletin of Marine Science, Vol. 86, No. 2, April 2010 (Table 1), pp.…
If a researcher's statistical test supports the conclusion that their manipulation did not improve worker morale, what is the likelihood the researcher made the wrong decision if power is set to 0.70? a) 70% b) 30% c) 35% d) cannot determine with the information provided

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