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Unformatted text preview: This assessment paper consists of 3 printed page © Hak Cipta Universiti Teknologi MARA CONFIDENTIAL CONFIDENTIAL 2 CS/JUL 2021/STA404 QUESTION 2 Null hypothesis : µd = 0 Alternative hypothesis : µd < 0 t statistic = −6.500 − 4.927√ 10= − 6.500 15.5805= -0.4172 Critical value = − tα , n-1 = -0.01, 9 = -2.821Decision rule Reject null hypothesis if t-test < t statistic. Conclusion Since t-test (-4.172) < t statistic (-2.821), we reject null hypothesis and conclude that there is enough evidence to conclude that the tutoring sessions help to improve the students’ mathematical skills. © Hak Cipta Universiti Teknologi MARA CONFIDENTIAL CONFIDENTIAL 3 CS/JUL 2021/STA404 © Hak Cipta Universiti Teknologi MARA CONFIDENTIAL...
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