QUESTION 1
Use the following scenario and data for all the questions
The lives of Lithium batteries used in a type of cell phones are normally distributed with an unknown standard deviation. A simple random sample of equation batteries is selected. The sample mean and standard deviation are found to be equation and equation hours, respectively. You are required to construct a confidence interval for the population mean with a confidence coefficient equation.
____________________________________________________________
The standard error, i.e., the standard deviation of the sample mean equation, is closest to
0.210
0.630
1.960
2.306
none of the above
1 answer
.63