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PLZ SOLVE THIS ASAP Q.13 The variability in the tensile strength of a type of steel wire must be controlled carefully. A sample of wire

PLZ SOLVE THIS ASAP

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Q.13 The variability in the tensile strength of a type of steel wire must be controlled carefully. A sample of wire is subjected to test and it is found that sample variance is 30.5 and sample size was n=15 observations. Test the hypothesis that the population variance is 25 against the alternative hypothesis that variance

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