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We want to test if there is evidence that the mean time people spend sleeping is greater for people under 30 years than for people

We want to test if there is evidence that the mean time people spend sleeping is greater for people under 30 years than for people over 30 years. Define the relevant parameters and state the null and alternative hypotheses. O We define /u to be the mean time people under 30 years spend sleeping and /, to be the mean time people over 30 years spend sleeping. The null hypothesis is Ho : Hu = Ho . The alternative hypothesis is Ha : Mu # Ho . O We define Mu to be the mean time people under 30 years spend sleeping and M. to be the mean time people over 30 years spend sleeping. The null hypothesis is Ho : Mu Ho . O We define Hi to be the mean time people under 30 years spend sleeping and Mo to be the mean time people over 30 years spend sleeping. The null hypothesis is Ho : Hu = Ho . The alternative hypothesis is Ha : Hu

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