A ALEKS - Jianna Granado - Fina X + A InAnAL-OWNI alake comlalakesilvilel avella II.InMelkacWgAQD\\\\/D197 176Aml linensauDu IGIEW/MMGQc=[Inin2OnVwfwnRRCKoenVI INTvvan Final Exam - Practice Exam E Question 15 of 19 (1 point) | Question Attempt: 1 of 1 Jianna V Espanol 8 10 ~ 11 12 13 14 15 16 17 18 19 A scientist has read that the mean birth weight of babies born at full term is 7.4 pounds. The scientist has good reason to believe that the mean birth weight of ? babies born at full term, u, is less than this value and plans to perform a statistical test. She selects a random sample of birth weights of babies born at full term and finds the mean of the sample to be 7 pounds and the standard deviation to be 1.6 pounds. Based on this information, complete the parts below. (a) What are the null hypothesis Ho and the alternative hypothesis H, that should be used for the test? X H : D OSO D H, :0 120 1 0*0 Suppose that the scientist decides not to reject the null hypothesis. What sort of error might she be making? (Choose one) V X (c) Suppose the true mean birth weight of babies born at full term is 7.4 pounds. Fill in the blanks to describe a Type I error. A Type I error would be (Choose one) the hypothesis that u is (Choose one) (Choose one) V when, in fact, u is (Choose one) V . Continue Submit Assignment ms of Use Privacy CenteALEKS (-)c anna Granada na X i' E masseawmellaimnamml Fmal Exam - Practice Exam Question 16 of i9 (1 point) ' Question Attempt: 1 of1 LnenaammmaaeMma male I: n m t El . 3 i Jianna V moaemuoc The mean SAT score in mathematils is 507. The standard deviation of these scores is 31. A special preparation course claims that the mean SAT score, u, of its graduates ls greater than 507. An Independent researcher tests this by taking a random sample of 150 students who completed the course; the mean SAT score in mathematics for the sample was 511. At the 010 level of signicance, can we conclude that the population mean SAT score for graduates of the course is greater than 507? Assume that the population standard deviation of the scores of course graduates Is also 31. Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places, and round your responses as specied below. (If necessary, consult a list of formulas.) (a) State the null hypothesis H0 and the alternative hypothesis H1. H0 :EI lelj (b) Determine the type of test statistic to use. (Choose one) V (c) Find the value of the test statistic. (Round to three or more decimal places.) III (d) Find the p-value. (Round to three or more decimal places.) I] (e) can we support the preparation course's claim that the population mean SAT score of its graduates is greater than 507? OYes ONo ALEKS annaGranado na x (_ _) 0' '" mmmammsiieimnxmm Lnenaemmmaaamw more (a n m t El . 3 Fmal Exam - Practice Exam Question 17 of 19 (1 point) i Question Ailempi:1of1