By decreasing the level of confidence, keeping everything else constant, the margin of error will be reduced.
Select one: True False
Correct option:
True
EXPLANATION:
As the confidence level decreases, the margin of error decreases.
Margin of Error = Z SE
When the confidence level decreases, the significance level increases. When increases, Z decreases. So, Margin of Error decreases.
By decreasing the level of confidence, keeping everything else constant, the margin of error will be...
If everything else stays the same, the margin of error can be reduced by (select all that are true) increasing confidence level decreasing sample size increasing sample size decreasing confidence level
Question number 4 If everything else stays the same, the margin of error can be reduced by (select all that are true) increasing confidence level decreasing sample size decreasing confidence level increasing sample size I don't know Question number 5 In a certain state, a survey of 600 workers showed that 35% belonged to a union. Find the 95% confidence interval of true proportion of workers who belong to a union. (0.3118,0.3882) O 210 (34.9618, 35.0382) (0.29,0.41) (0.0396, 0.0771) I...
19. When calculating a confidence interval, keeping the sample size the same but decreasing the confidence level, will a. decrease the width of the confidence interval b. decrease the margin of error c. make us less sure that our confidence interval contains the true parameter d. all of the above 20. A research company polled a random sample of 799 U.S. teens about internet use.0.49 of those teens reported that they had misrepresented their age online to gain access to...
Which of the following statements concerning friction is false? a) Keeping everything else constant, the maxium frictional force that can act on a block sitting on a table will increase if extra mass is places on top of the block. b) For most pairs of surfaces, the coefficient of kinetic friction is less than the coefficient of static friction. c) The size of the frictional force can depend on the applied force. d) The frictional force is always proprotional to...
Keeping everything else the same, if you were to change your alpha level from .01 to .05, the likelihood of rejecting the null hypothesis A. Increases B. Decreases C. Remains the same
For the specified margin of error and confidence level, obtain a sample size thaf will ensure a margin of error of at mozt the one specified. margin of error = 0.02 ; confidence level = 90% n=
Increasing the sample size while keeping the same confidence level has what effect on the margin of error? A. Decreases the margin of error and hence decreases the precision B. Decreases the margin of error and hence increases the precision C. Increases the margin of error and hence decreases the precision D. Increases the margin of error and hence increases the precision E. None of the above The regression line is the straight line that bests fits a set of...
Oubled to 10.4 and the level of confidence 0J 0011at would be the new margin of error and confidence interval? Margin of error, E o 0.90-1.645 11645X10.4/T0.7 Did the confidence interval increase or decrease and why? Confidence Interval: 2089< u< 2H.32 24.10 4. Definition of Confidence Intervals (Section 6.1) Circle your answer, True of False. A 99% confidence interval means that there is a 99% probability that the population mean, u, is in the interval. True / False A 90%...
1. With same level of confidence, to decrease the margin of error the sample size... a. stays the same b. decreases c. increases 2. With same margin of error, as the level of confidence increases the sample size... a. decreases b. increases c. stays the same
Using the same sample data, the margin of error for an 80% confidence interval is larger than the margin of error for a 90% confidence interval. True or false? why? I thought it was false, but I think I might be wrong.