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Probabilities for Combinations of Three
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Exercises s 15 Use of Standard Normal Tables
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90 per cent a-level accept H alternative hypothesis analysis of variance binomial distribution binomial experiment cells cent conﬁdence interval Chapter class boundaries class interval class marks coefﬁcient column computing formula corresponds critical region consists deﬁned deﬁnition degrees of freedom denoted discussed estimate EXAMPLE expected frequencies face card Find the probability ﬁnding ﬁrst Fisher-z ﬁve Formulate the null frequency distribution given histogram inequality known variance means are equal median normal curve normal population null and alternative null hypothesis number of degrees number of observations number of outcomes number of successes Obtain a random occur order to ﬁnd Procedure for Testing quantity random sample random variable rank-sum ranks reject H sample mean sample sizes sample variance second drug selected speciﬁed standard deviation standard normal tables statistics sum of squares symbol t-distribution Testing H total number Type I error versus H1 Wilcoxon signed-rank test x-values yielded