Computing odds of flipping three tails

Assignment Help Basic Statistics

Reference no: EM1321411

Q1) Real estate office has 10 sales agents. Each of 3 new customers should be assigned agent. Determine the number of agent arrangements where order is significant.

Q2) A fair coin is flipped 3 times. Determine probability that at least one head comes up.

Q3) A fair coin is flipped 3 times. Compute the odds of flipping 3 tails.

Q4) For patients over age 80, probability is 0.05 that coronary bypass patient will die soon after surgery. If hospital performs eight such operations, determine the probability of no fatalities?

Q6) If fair die rolled once comes up 6 you win $100. Otherwise, you lose $15. Compute the expected value of this game.

Q7) Assume average puppy weighs 10 pounds. A sample of 10 puppies yields sample mean of 13.2 pounds and a sample standard deviation of 2.78 pounds. Assume population standard deviation is known to be 5.25. You want to test whether the sample mean differs from the population mean of 10 pounds at a 5 percent level of significance using a two-tailed test. Find out whether or not null hypothesis should be rejected

a) Reject the null hypothesis.

b) Fail to reject the null hypothesis.

Reference no: EM1321411

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