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How Many Tissues Should the Kimberly Clark Corporation Package of Kleenex

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How many tissues should the Kimberly Clark Corporation package of Kleenex contain?Researchers determined that 60 tissues is the mean number of tissues used during a cold.Suppose a random sample of 100 Kleenex users yielded the following data on the numberof tissues used during a cold: Xˉ=52\bar { X } = 52 , S = 22.Give the null and alternative hypotheses to determine if the number of tissues used during a cold is less than 60. a) H0:μ60H _ { 0 } : \mu \leq 60 and H1:μ>60H _ { 1 } : \mu > 60 .
b) H0:μ60H _ { 0 } : \mu \geq 60 and H1:μ<60H _ { 1 } : \mu < 60 .
c) H0:Xˉ60H _ { 0 } : \bar { X } \geq 60 and H1:Xˉ<60H _ { 1 } : \bar { X } < 60 .
d) H0:Xˉ=52H _ { 0 } : \bar { X } = 52 and H1:Xˉ52H _ { 1 } : \bar { X } \neq 52 .


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