What minimum sample size is needed for a study on average CD prices if the average price is $14.00 and you want to be within 50 cents of the true mean. You know the
standard deviation is $1.30 and you want 99% confidence.

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.

The writing is like bold so i can’t see it well