A manufacturing rm claims that the batteries used in their
Chapter 9, Problem 8.48(choose chapter or problem)
A manufacturing rm claims that the batteries used in their electronic games will last an average of 30 hours. To maintain this average, 16 batteries are tested each month. If the computed t-value falls between t0.025 and t0.025, the rm is satised with its claim. What conclusion should the rm draw from a sample that has a mean of x = 27 .5 hours and a standard deviation of s = 5 hours? Assume the distribution of battery lives to be approximately normal.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer