The mean of a random sample of size 49 is used to estimate the mean of a very large population, consisting of the lifetimes of certain stereo components which have a standard deviation of $\sigma=35$ hours. What is the probability that our estimate will be in error by
-less than 8 hours?

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The Answer of The mean of a random sample of size 49 is used to estimate the mean of a very large population, consisting of the lifetimes of certain stereo components which have a standard deviation of $\sigma=35$ hours. What is the probability that our estimate will be in error by
-less than 8 hours?

The Mean of a Random Sample of Size 49 Is σ=35\sigma=35σ=35

The Mean of a Random Sample of Size 49 Is $\sigma=35$