A normal variable has variance 9. At the the 90% confidence level, can we reject the hypothesis that the mean is 50? 40,
Posted: Wed May 11, 2022 6:01 am
A normal variable has variance 9. At the the 90% confidence
level, can we reject the hypothesis that the mean is 50?
40, 45, 55, 57, 65
the z value you need is 1.645
a.
should reject
b.
fail to reject
level, can we reject the hypothesis that the mean is 50?
40, 45, 55, 57, 65
the z value you need is 1.645
a.
should reject
b.
fail to reject