The rectangle below has been reduced by a scale factor.

a rectangle with width 15 centimeters is enlarged to a rectangle with width 3 centimeters and length 5 centimeters.

what is the area of the original rectangle?
25 cm²
75 cm²
375 cm²
450 cm²

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).