Which numbers between 20 and 50 have
just two factors?

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.

3/8 of the students in ms. mull’s class ride the bus. if there are 24 students in the class, how many students ride the bus?

What does the side elevation look like when looking from the outside of the room