IQ scores among the general population have a mean ofof. A researcher claims that the standard deviation,less than. A random sample ofstandard deviation ofand a standard deviation, of IQ scores for males isIQ scores for males had a mean ofand a. Assuming that IQ scores for males are approximatelynormally distributed, is there significant evidence (at theconclude that the researcher’s claim is correct?level of significance) toPerform a onetailed test.Then fill in the table below.Carry your intermediate computations to at least three decimal places and round youranswers as specified in the table. (If necessary, consult a list of formulas.)The null hypoThe alternative hypoThe type of statisticThe value of the test statistic: round to the nearest three decimal placesThe critical value at the 0.05 level of significance: round to the nearest threeCan we support the claim that the standard deviation of IQ scores for males is less than15?
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