Consider results of 20 randomly chosen people who have run a marathon. Their times, in minutes,...

Consider results of 20 randomly chosen people who have run a marathon. Their times, in
minutes, are as follows:

137, 146, 150, 163, 166, 179, 186, 193, 196, 213, 218, 225, 236, 239, 254, 269, 271, 279, 282, 295.

Calculate a 90% upper confidence bound on the mean time of the race. Assume distribution to be
normal.

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orchestra answered 1 year ago

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