Answered: there were 230 participants in the…

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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Similar questions

Suppose you are going to draw 20 cards, with replacement, from a deck of 52 cards and record the proportion of draws that are red. There are 26 red and 26 black cards in a typical deck of cards. You draw the 20 cards, replacing each card between draws, and 2/20 cards drawn are red. Are you suspicious about the fairness of this deck of cards? Simply list the answer to your probability calculation and explain your reasoning.
The president of Doerman Distributors, Inc. believes that 30% of the firm's orders come from first-time customers. A random sample of 100 orders will be used to estimate the proportion of first-time customers. What is the probability that the sample proportion will be within .05?
The probability of having 3 boys out of 4 children is to be determined. A simulation is conducted in which the experimental probability is exactly equal to theoretical actual probability. If the event occured 53 times during trials, how many trials were conducted.
A study indicates that 48% of births at a particular hospital have are by caesearian section. You randomly sample 8 births at a particular hospital. Find the probability that less than 3 are by caesearian section.
A pharmaceutical company is running trials on a new test for anabolic steroids. The company uses the test on 400 athletes known to be using steroids and 200 athletes known not to be using steroids. Of those using steroids, the new test is positive for 375 and negative for 25. Of those not using steroids, the test is positive for 25 and negative for 175. What is the relative frequency of a false negative result (the probability that an athlete using steroids will test negative)? (Round your answer to two decimal places.) What is the relative frequency of a false positive result (the probability that an athlete not using steroids will test positive)? (Round your answer to two decimal places.)
1000 us adults were asked about their online vs. in store clothes shopping. One finding was that 32% of respondents never clothes-shop online. How do I find the probability that the pecentage of respondents who never shop online is below 33.3%
Please find the attached photo.
One control is beyond +2 s from the mean. How frequently would this occur on the basis of chance alone? why the correct answer is B ..please explain with pictures and explnation A. 1:100 B. 5:100 C. 1:400 D. 1:1600
Based on observation 85% of the population of adult males wash their hands in a public restroom. In a survey of 523 adult males, 518 reported they washed their hands when using a public restroom. Find the probability that among 523 randomly selected adult males 518 or more wash their hands in a public. restroom. Does it appear that all the people who claimed they washed their hands were telling the truth?

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there were 230 participants in the treatment group and 227 in the control group cohens d was 0.50. Is it real or due to chance