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Find the standardzed test statistic z, to test the hypothess that p1<="" a.="" and="" answer="" are="" b.="" below="" click="" d="" d.="" donal="" e="" f3="" f4="" f5="" f6="" f7="" f8="" from="" here="" ics="" independert="" lst="" m="" n,="550," n2="690x2-195" o="" oc.="" otype="" places="" ple="" round="" sample="" samples.="" sar="" search="" select="" span="" stat="".
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Find the standard deviation, s, of sample data summarized in the frequency distribution table below by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation.
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Find the value of t for the difference between two means based on an assumption of normality and this information about two samples. (Use sample 1 - sample 2. Give your answer correct to two decimal places.) Sample      Number      Mean    Std. Dev. 1                       20             .
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