Please answer question B.

Hoping to lure more shoppers downtown, a city builds a new public parking garage in the central business district. The city plans to pay for the structure through parking fees. For a random sample of 42 weekdays, daily fees collected averaged $131, with standard deviation of 51?. Complete parts a through e below. a) What assumptions must you malte in order to use these statistics for inference? Select all that apply. EA. The data are a random sample of all clays. y B. The distribution is unimodal and symmetric with no outliers. C. The sample size is at least 10% of the population. D. The data values should be dependent. b) Find a 90% confidence interval for the mean daily income this parking garage will generate. The 90% condence interval forthe mean daily income is (S ,S ). (Round to two decimal places as needed.)