tabcaps lockshiftTextEdit File Edit Format View WindowTimes New Roman Bod...esc7alfI7QANFormat View Window HelpHypothesis Test Assignment (1) f12--ADIUE DE5. A professor at a community college claims that a college algebra student can increase hisor her score on an exam if the person is provided with a pre-test the week before theexam. To test her theory, she selected 16 college algebra students at random and gavethese students a pre-test the week before an exam. She also selected a random sample of12 students who were given the same exam but did not have access to a pre-test. The firstgroup had a mean score of 79.4 with standard deviation 8.8. The second group had almean score of 71.2 with standard deviation 7.9. Test to see if the population mean scoreof students who get a pre-test is different from the population mean score of those who donot. Use a 5% significance level.a)State the null and alternate hypotheses.b)Would you use the normal distribution (z) or Student's (t) distribution? Why?c)State the test statistic and p-value of your test. Round your answers to fourdecimal places.W28MacBook Air20F102WSX80,#3ED$4gogDDD F4CRF%5VFSTG6BY&7H44 17UN*➤ll faFO8JM1998% (+) Thu 10:54 PM Madelyn Barker QIEwould bether up oron is -1.ppositepadmill thekes to getKO<0L4)FIAB(PF12B?Ialtdeleteenterretur

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Hypothesis Test Assignment (1) f man Bod 5. A professor at a community college claims that a college algebra student can increase his or her score on an exam if the person is provided with a pre-test the week before the exam. To test her theory, she selected 16 college algebra students at random and gave these students a pre-test the week before an exam. She also selected a random sample of 12 students who were given the same exam but did not have access to a pre-test. The first group had a mean score of 79.4 with standard deviation 8.8. The second group had a mean score of 71.2 with standard deviation 7.9. Test to see if the population mean score of students who get a pre-test is different from the population mean score of those who do not. Use a 5% significance level. a) State the null and alternate hypotheses. b) Would you use the normal distribution (z) or Student's (t) distribution? Why? c) State the test statistic and p-value of your test. Round your answers to four decimal places. F C would ther up on is- pposite admill kes to