Imagine that researchers appropriately conduct a paired-samples t test with 25 pairs of related scores. the mean difference between those 25 pairs of scores was 5.00. the standard deviation for the 25 difference scores was 7.50. what is the corresponding value for cohen's d (rounded to three decimal places)? when computing your answer, assume that the researchers are using a standard null hypothesis that predicts no differences.

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.

The height of a plant, in inches, p years after planting it is given by the polynomial function r(p) = -2p% + 270p. find the height of the plant when p = 90 years.