Q7. A Random Variable X has an unknown distribution, a known mean of 10 and an unknown variance, o. To test a claim that the distribution is no longer 10, a random sample of 100 of X was collected which gave a sample mean, x of 9.8 and a sample variance, s² = 16. Which of these is the appropriate Null and Alternative hypothesis? A. Η: μ 10 ; Η: μ# 10. B. Η μ- 10 ; Η: μ < 10. C. Η: μ 10 ; Η: μ > 10. D. x = 10 ; H1:X+10. О А. А О В. В С. С O D. D O O

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