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For a standardized psychology examination, the scores have id deviation of 98. It is hypothesized that the standard deviation, o, of scores for psychology majors on this exam is lower than 98. Enter your search term as completed by psychology majors had a mean of 511 and a standard deviation of 71. Assuming that scores among psychology majors on this exam are approximately normally distributed, may we conclude, at the 0.05 level of significance, that the hypothesis is correct? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified below. (If necessary, consult a list of formulas.) u a р (a) State the null hypothesis Ho and the alternative hypothesis H1 H:0 x s 4:0 吕 Chi square ロ=口 OSO DO (b) Determine the type of test statistic to use. Degrees of freedom: 0 (c) Find the value of the test statistic. (Round to three or more decimal places.) 0 ロ<ロ X G ? (d) Find the critical value. (Round to three or more decimal places.) 0 (e) Can we conclude that the standard deviation of scores for psychology majors on the exam is lower than 98? Yes No