Which of the following is a characteristic of the Z-test?
Always uses a normal distribution and applied when standard deviation is known
Has many methods to adapt to different needs
More adaptable than t-test
More commonly used than t-tests
Construct a 90% confidence interval for a sampling distribution having a mean of 25 and a size
Construct a 95% confidence interval for a sampling distribution having a mean of 25 and a size
of 64. The standard deviation of the population from which the samples are drawn is 4.
24.02 to 25.98
24.094 to 25.906
24.178 to 25.822
5% to 95%
In which of the following do we use Z-distribution?