The lengths of footlong sub sandwiches at a local sub shop follow an approximately normal distribution with unknown mean and standard deviation 0.2 inch. If 20% of these sandwiches are shorter than 11.

The lengths of footlong sub sandwiches at a local sub shop follow an approximately normal distribution with unknown mean

and standard deviation 0.2 inch. If 20% of these sandwiches are shorter than 11.7 inches, find the mean length u.
Mean
inches
(Round to 2 decimal

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The lengths of footlong sub sandwiches at a local sub shop follow an approximately normal distribution with unknown mean and standard deviation 0.2 inch. If 20% of these sandwic…

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