Find a 95 ci on the mean foam height find a 95 prediction

Reference no: EM13617114

The maker of a shampoo knows that customers like this product to have a lot of foam. Ten sample bottles of the product are selected at random and the foam heights observed are as follows (in millimeters): 210, 215, 194, 195, 211, 201, 198, 204, 208, and 196.

a. Is there evidence to support the assumption that foam height is normally distributed?

b. Find a 95% CI on the mean foam height.

c. Find a 95% prediction interval on the next bottle of shampoo that will be tested.

d. Find an interval that contains 95% of the shampoo foam heights with 99% confidence.

Reference no: EM13617114

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