5. The cost of electricity, x, in June for a random sample of 50 one-bedroom apartments in a city in the central portion of New Jersey is summarized by a histogram. Complete the following questions: Note: the sample mean is 150 and the sample variance is 1024 a) Does the monthly electricity cost seem to have approximately a symmetric distribution? YES or NO b) if x=150 and s2=322, find the interval that contains 95% of the data. Answer: c) Did you have to use Chebyshev's Rule to find the answer to (b) above? YES or NO d) If one electricity bill is x=118, what is the corresponding z-score? Answer: o) If the minimum monthly bill is 86 and the range is 140 , find the z-sconl of the maximum monthly bill. Answer: f) Do you think there are possible outiliers in this sample? YES NO Why? g) Given a z-score = -2, what is the corresponding value of x