Use the chi-square distribution for the ff. tests(a) A poker-dealing machine is supposed to deal cards at random, as if from an infinitedeck. You counted 1000 cards and observed the following:Spades209Hearts183Diamonds212Clubs196At a level of significance of 0.05, is there any evidence to conclude that the suitsare not equally likely?

Claim : the suits are not equally likely.

Answered: Use the chi-square distribution for 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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In a certain town, 62% of the residents enjoy riding roller coasters. Alfred takes a sample of 75 residents from this town. What is the probability that fewer than 58% of the residents in the sample enjoy riding roller coasters? 0.238 0.433 0.714 0.762
Binomial distribution.9% of men cannot distinguish between the colours red and green. This is the type of colour blindness that causes problems with traffic signals. If 6 men are randomly selected for a study of traffic signals perceptions, find the probability of:a) Exactly 2 men cannot distinguish between red and green
Binomial distribution.9% of men cannot distinguish between the colours red and green. This is the type of colour blindness that causes problems with traffic signals. If 6 men are randomly selected for a study of traffic signals perceptions, find the probability of:a) Exactly 2 men cannot distinguish between red and green.b) At least 1 man cannot distinguish between red and green
Refer to the sample data for polygraph tests shown below. If one of the test subjects is randomly selected, what is the probability that the subject is not lying? Is the result close to the probability of 0.443 for a negative test result? Did the Subject Actually Lie? No (Did Not Lie) Yes (Lied) O Positive test results 10 44 Negative test results 36 The probability that a randomly selected polygraph test subject was not lying is (Type an integer or decimal rounded to three decimal places as needed.) Is the result close to the probability, rounded to three decimal places, of 0.443 for a negative test result? because there is V a 0.050 absolute difference between the probability of a true response and the probability of a negative test result. Enter your answer in the answer box. Prise 6. LEGO
The accompanying tree diagram represents an experiment consisting of two trials. Use the diagram to find the probabilities below. (a) P(A)(b) P(E | A)(c) P(A E)(d) P(E)
A machine uses electrical switches that are known to have a 3% fail rate for each use. The machine uses three switches, and each switch is independent. (a) How many outcomes are there in the sample space? 8 (b) Let x = the number of failed switches in one run of the machine. How many possible values of x are there? 4 (c) What is the probability of exactly one switch failing in one run of the machine?. 0.0847 X There is more than one way for one switch to fail in one run of the machine. (d) If the probability of no switches failing is 0.912673 and the probability of all switches failing is 0.000027, then complete the probability distribution table for x. X p(x) 0.912673 0 Need Help? Read It 0.084681 1 ✓ 0.002619 2 0.000027 3
From this: What type of test would this be? (t- test, z-test, etc) What hypothesis is reasonable?
A survey indicates that 20% of parents use spanking as a discipline strategy. Among those parents who spank, 70% believe a kid should always obey the parent. Among those parent who do not spank, 10% believe a kid should always obey the parent. Which of the following gives the probability that a randomly selected parent believe that a kid should always obey the parent? a) (0.2)(0.7) + (1-0.2)(0.1) b) (0.2)(0.7) + (0.2)(0.2) c) 0.7 + 0.1 d) 0.2 + 0.7

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