Posted: June 15th, 2022

What is the approximate standard deviation of

Examine outcomes point out that the imply time to obtain a sure program to a personalcomputer is between 28.7 and 33.5 seconds.What is the research’s margin of error?Query 15 choices:7.zero s4.8s3.5 s2.four sMovie theater tickets in a area have a imply price of $eight.41 and a standard deviation of$zero.82.What is the approximate standard deviation of the sampling distribution of the imply forsamples of measurement 50?Query 16 choices:$zero.12$zero.17$zero.10$zero.02In a random pattern of 60 individuals who rode a curler coaster sooner or later, the imply wait time is42.four minutes with a standard deviation of eight.eight minutes. In a random pattern of 30 peoplewho rode a Ferris wheel the similar day, the imply wait time is 12.7 minutes with a standarddeviation of 2.eight minutes.Which interval is the 99% confidence interval for the distinction between the imply waittimes of everybody who rode each rides?Query 17 choices:In a easy random pattern of 80 sufferers who noticed a sure dentist, 9 sufferers had theirteeth whitened.Which interval is the 95% confidence interval for the % of all the dentist’s sufferers whohad their enamel whitened?Query 18 choices:Which phrase is the greatest description of the affiliation between variables X and Y?Query 19 choices:weak positiveassociationstrong optimistic associationstrong destructive associationweak destructive associationQuestion 20 choices:-2.522.5-2

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