In a bowl of fruit salad there are strawberries, blueberries, grapes, and raspberries. In a representative sample of 30 pieces of fruit, there are 8 grapes. If the fruit salad has 270 pieces of fruit, estimate the number of grapes in the fruit salad. Use pencil and paper. Draw a picture to represent the proportional relationship.

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to