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ProbabilityQ&A LibraryA pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of 9 patients. The effective period of the tranquilizer for each patient (in hours) was as follows: 2.5; 2.9; 3.0; 2.3; 2.3; 2.2; 2.8; 2.1; and 2.4. x = (rounded to two decimal places) sx = (rounded to two decimal places) n = n − 1 =Start your trial now! First week only $4.99!*arrow_forward*

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A pharmaceutical company makes tranquilizers. It is assumed that the distribution for the length of time they last is approximately normal. Researchers in a hospital used the drug on a random sample of 9 patients. The effective period of the tranquilizer for each patient (in hours) was as follows: 2.5; 2.9; 3.0; 2.3; 2.3; 2.2; 2.8; 2.1; and 2.4.

x =

(rounded to two decimal places)

s_{x} =

(rounded to two decimal places)

n =

n − 1 =

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