According to the Central Limit Theorem:
A population is bimodal with a variance of 5.77. One hundred samples of size 30 are randomly collected and the 100 sample means are calculated. The standard deviation of these sample means is approximately:
The median is a better choice than the mean for a measure of central tendency if the data:
This table displays the inventory of fasteners in a storage cabinet. An item is selected at random from the fastener cabinet. Find the approximate probability it is a bolt.
A higher resolution number for an experimental design indicates that:
The Central Limit Theorem states that the distribution of sample means approximates a normal distribution if:
A team wants a technique for improving consistency of assembly operations. They should use:
(Refer to the previous problem) The variance of the five replications for each run is calculated. Most of these variances are approximately equal but two are significantly lower than the others. The experimenters would be especially interested in those two runs if they want to optimize:
A medicine with efficacy of .52 is given to five patients. Find the approximate probability that at least one of the patients is cured. (Hint: Use the binomial formula.)
Find the value of (5) in the ANOVA table. Assume:
