Mathematics, 19.11.2019 06:31 phancharamachasm
Here are the tips of 25 randomly selected patrons, measured in percent of total bill.20.8 18.7 19.9 20.6 21.9 23.4 22.8 24.9 22.2 20.324.9 22.3 27.0 20.4 22.2 24.0 21.1 22.1 22.0 22.719.1 20.6 22.3 22.0 29.4 the standard deviation of tips is known to be 2.5.a) what is the 94% confidence interval for the mean tip of patrons if the distribution of tips is approximately normal? b) what is the 98% confidence interval for the mean tip of patrons if the distribution of tips is unknown?
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The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.
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Here are the tips of 25 randomly selected patrons, measured in percent of total bill.20.8 18.7 19.9...
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