You have a cylinder whose volume is calculated V = πr2h. where r (radius) and h (height) (a) The h of the cylinder is me

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You have a cylinder whose volume is calculated V =
πr2h.
where r (radius) and h (height)
(a) The h of the cylinder is measured 5 times with
the following values, 2.62 cm, 2.63 cm, 2.66 cm, 2.66 cm, 2.68
cm. Determine the range within which the actual height h of the
cylinder is expected to lie with a confidence of 90%
(b) Determine the 90% confidence interval for the
cylinder’s volume (V) if the radius (r) is measured to be r = 1.00
cm with uncertainty ±0.05 cm for a confidence interval of 90%.