Discussion:
Q: CD camera produces a new camera that claims can take an average of at least 8 photographs per second. A test of 37 randomly selected cameras found a sample mean of 7.7 photos/sec. The population standard deviation is known to be 0.65 photos/sec.
Does the sample data present sufficient evidence to reject the manufacturer's claim? If so, how strong is the evidence? Use a hypothesis testing procedure and an alpha = 0.01.