A nutritionist claims that the mean tuna consumption by a person is pounds per year. A sample of people shows that the mean tuna consumption by a person is pounds per year. Assume the population standard deviation is pounds. At , can you reject the claim? (a) Identify the null hypothesis and alternative hypothesis. A. : : B. : : C. : : D. : : E. : : F. : :

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?