Suppose the manager agrees to pay each employee a $50 bonus if they meet a certain goal. The oil change facility will perform 25 oil changes between 10AM and 12 PM. Treating this as a random sample, at what mean oil change time would there be 10% chance of being at or below? This will be the goal established by the manager.
There would be a 10% chance of being or below minutes

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?