A sample of 92 observations is taken from a process (an infinite ...

[tiara099]

A sample of 92 observations is taken from a process (an infinite population). The sampling distribution of is approximately normal because _____.
 a. x is always approximately normally distributed
  b. the sample size is small in comparison to the population size
  c. of the central limit theorem
  d. None of the answers is correct.

Question 2

Sandy's Pet Center grooms large and small dogs. It takes Sandy 40 minutes to groom a small dog and 70 minutes to groom a large dog. Large dogs account for 20 of Sandy's business. Sandy has 5 appointments tomorrow.
 a. What is the probability that all 5 appointments tomorrow are for small dogs?
  b. What is the probability that 2 of the appointments tomorrow are for large dogs?
  c. What is the expected amount of time to finish all 5 dogs tomorrow?

[Sarahjh]

Answer to Question 1

c

Answer to Question 2

a. .3277
b. .2048
c. 230 minutes

[tiara099]

Thanks for the timely response, appreciate it

[carlsona147]

Wow, this really help