A company makes a mean monthly income of $20,500 with a standard
deviation of $3,400. In one month, the company makes $29,700
1) Find the Z-score of $29,700 .Round the number to the nearest hundredth (4pts)
2) Assuming that the company's monthly income is normal, what percent of time
the company makes less than $29,700 (Use the table of normal standard
probability) (2pts)
3)same as question 2) what is the probability that the company makes more than 29700 (use the table)
4)If the z-score of 15200 is -1.56 and the Z-score of 25200 is +1.39 what is the probability that the company makes between 15200 and 25200