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C. confidence interval D. all of these 36. Which of the following are the 95% confidence coefficients? B. ±1.96 C. +2.33 A. +1.645 D. +2.575

C. confidence interval D. all of these 36. Which of the following are the 95% confidence coefficients? B. ±1.96 C. +2.33 A. +1.645 D. +2.575

MATLAB: An Introduction with Applications
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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C. confidence interval 36. Which of the following are the 95% confidence coefficients? A. +1.645 C. +2.33 B. +1.96 D. all of these 37. A bottled water is labeled 20 fluid ounces of water. It is believed that it is not 20 fluid ounces. Where is the rejection region? A. center B. left end tail region D. +2.575 C. right end tail region D. both end tails region 38. A high school principal wants to determine the effect of the school's math teachers' work experience on the students' scores in the final examination. Determine the independent variable of this study. A. students' score B. math teachers' score B. 2 39. If the population has a variance of 16 units, what is the variance of the mean if sample of size 5 are selected? A. 0.8 C. students' work experience D. math teachers' work experience C. 3.2 40. What is the probability of each rejection region in a normal distribution of two-tailed test given the level of significance a = 0.01? A. 0.001 B. 0.005 42. Which of these values is a parameter? A. X B. X D. 4 C. 0.01 41. Suppose the probability of committing Type I error increases. What will happen to the probability of committing Type II error? A. The probability of committing Type II error will decrease. B. The probability of committing Type II error will be doubled. D. 0.05 C. The probability of committing Type II error will be the same. D. The probability of committing Type II error will also increase. D. H C. z 43. A gym instructor claims that at least 70% of the members in the gym are female. In a random sample of 100 members, 50% are female. Using 0.05 level of confidence, what is the rejection region? A. The rejection region is the set of values above 1.645 B. The rejection region is the set of values below 1.645 C. The rejection region is the set of values above - 1.645 D. The rejection region is the set of values below - 1.645 44. What does .05 level of significance mean? A. The acceptable error in the study is 95%. B. The acceptable error in the study is .95. C. There is less than 5% probability that the null hypothesis is correct. D. There is more than 5% probability that the null hypothesis is correct. 45. A soft drink vending machine is adjusted so that on average it will automatically dispense 200 ml into a paper cup. However, the actual amount dispensed is not exactly 200 ml. the operations manager obtains a sample of 35 cups of dispensed soda and the mean of his sample is 195 ml. The machine operates with a known standard deviation of 14 ml. At 5% level of significance, what is the appropriate decision rule? A. Do not reject the null hypothesis if the calculated z - value is equal to 1.96
Transcribed Image Text:C. confidence interval 36. Which of the following are the 95% confidence coefficients? A. +1.645 C. +2.33 B. +1.96 D. all of these 37. A bottled water is labeled 20 fluid ounces of water. It is believed that it is not 20 fluid ounces. Where is the rejection region? A. center B. left end tail region D. +2.575 C. right end tail region D. both end tails region 38. A high school principal wants to determine the effect of the school's math teachers' work experience on the students' scores in the final examination. Determine the independent variable of this study. A. students' score B. math teachers' score B. 2 39. If the population has a variance of 16 units, what is the variance of the mean if sample of size 5 are selected? A. 0.8 C. students' work experience D. math teachers' work experience C. 3.2 40. What is the probability of each rejection region in a normal distribution of two-tailed test given the level of significance a = 0.01? A. 0.001 B. 0.005 42. Which of these values is a parameter? A. X B. X D. 4 C. 0.01 41. Suppose the probability of committing Type I error increases. What will happen to the probability of committing Type II error? A. The probability of committing Type II error will decrease. B. The probability of committing Type II error will be doubled. D. 0.05 C. The probability of committing Type II error will be the same. D. The probability of committing Type II error will also increase. D. H C. z 43. A gym instructor claims that at least 70% of the members in the gym are female. In a random sample of 100 members, 50% are female. Using 0.05 level of confidence, what is the rejection region? A. The rejection region is the set of values above 1.645 B. The rejection region is the set of values below 1.645 C. The rejection region is the set of values above - 1.645 D. The rejection region is the set of values below - 1.645 44. What does .05 level of significance mean? A. The acceptable error in the study is 95%. B. The acceptable error in the study is .95. C. There is less than 5% probability that the null hypothesis is correct. D. There is more than 5% probability that the null hypothesis is correct. 45. A soft drink vending machine is adjusted so that on average it will automatically dispense 200 ml into a paper cup. However, the actual amount dispensed is not exactly 200 ml. the operations manager obtains a sample of 35 cups of dispensed soda and the mean of his sample is 195 ml. The machine operates with a known standard deviation of 14 ml. At 5% level of significance, what is the appropriate decision rule? A. Do not reject the null hypothesis if the calculated z - value is equal to 1.96
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