Question: With reference to the thickness measurements in Exercise 2.41 , page 47 , obtain a (95 %) confidence interval for the mean thickness. Data From

With reference to the thickness measurements in Exercise 2.41 , page 47 , obtain a $95 \%$ confidence interval for the mean thickness.

Data From Exercise 2.41

2.41 The Aerokopter AK1-3 is an ultra-lightweight manned kit helicopter with a

2.41 The Aerokopter AK1-3 is an ultra-lightweight manned kit helicopter with a high rotor tip speed. A sample of 8 measurements of speed, in meters per second, yielded 204 208 205 211 207 201 201 203 Find the mean and quartiles for this sample.

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7.19 With reference to the thickness measurements in Exercise 2.41, page 47, obtain a 95% confidence interval for the mean thickness.

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