1.31
1.75
The answer will depend on whether the critical region is one-tailed or two-tailed.
It depends on whether the interval is one sided or two sided. The critical value for a 2-sided interval is 1.75
The answer depends on whether the interval is one-sided or two-sided and, if two-sided, whether or not it is symmetrical.
z = 1.56 gives a 2-tailed interval for 88%.z = 1.56 gives a 2-tailed interval for 88%.z = 1.56 gives a 2-tailed interval for 88%.z = 1.56 gives a 2-tailed interval for 88%.
1.75
The 98 percent confidence level is commonly used in statistical tests. The critical Zc refers to the amount of relation between to factors.
The answer will depend on whether the critical region is one-tailed or two-tailed.
It depends on whether the interval is one sided or two sided. The critical value for a 2-sided interval is 1.75
norminv([(1-0.86)/2 1 - (1-0.86)/2], 0, 1) which results in a z-score range of -1.4758 to 1.4758
The answer depends on whether the interval is one-sided or two-sided and, if two-sided, whether or not it is symmetrical.
OVERCONFIDENT
decrease
The value for a one-sided confidence interval of 86% is 1.08
it would be with a level of significance of 0.15.
1.555 With 88% confidence, there is 6% (0.06) in either tail of the standard Normal distribution. Table C will not help here. Using Table A the correct z* is about halfway between 1.55 and 1.56. According to technology, z*=1.555
The standard score associated with a given degree of confidence or level of significance.