Question

1.

Assume that a procedure yields a binomial distribution with n=788 trials and the probability of success for one trial is p=0.67 .

Find the mean for this binomial distribution.
(Round answer to one decimal place.)
μ=

Find the standard deviation for this distribution.
(Round answer to two decimal places.)
σ=

Use the range rule of thumb to find the minimum usual value μ-2σ and the maximum usual value μ+2σ.
Enter answer as an interval using square-brackets round to 4 decimal places.
usual values =

2.

The scores on a standardized test are normally distributed with a mean of 120 and standard deviation of 25. What test score is 0.3 standard deviations above the mean?

Answer=

Answer 1