Emily has a collection of plastic containers shaped like cylinders and cones. Emily has two identical cylinders and six identical cones. The combined volume of the cylinders is equal to the combined volume of the cones. The diameters of the cylinders and cones are 412 inches and the heights of the cylinders are 7 inches. What is the height of each cone?

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).

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.