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Properties Describing Distributions
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accept H0 alternative hypothesis analysis of variance approximately normally distributed assumed binomial experiment brand bulbs cards chi-square distribution class boundary class marks class width coin column computed confidence interval corresponding critical region DEFINITION degrees of freedom denoted elements equation estimate of a2 event Example Exercise expected frequencies F distribution fall Figure Find the probability formula frequency distribution frequency histogram given grouped data H0 is true Hence histogram level of significance mathematics measurements median normal curve normal population null hypothesis obtain occurs outcomes pair parameter point estimate population means Pr(A Pr(X Pr(Z probability distribution proportion random sample random variable Reject H0 representing the number sample mean sample space sampling distribution selected at random significance equal Solution standard deviation standard normal statistic subset sum of squares test the hypothesis tion tossed total number type II error variance a2 varieties of wheat weights x2 value zero