(Answered) 1 let sample mean 70 and the sample variance 36 and

Statistics

1. Let sample mean = 70 and the sample variance = 36 and assume the data is normally distributed. Use ths information to answer the following:

a. what is the median of this data set?

b. find an interval that would contain 68% of all data values from the sample.

c. find the x-value that corresponds to the 16th percentile

d. what is the z-score associated with x=80

2. In a certain city, the fire department typically responds to eight emergencies per month. Last month the department responded to two emergencies. Some of the employees at the fire station believe that because of last month's numbers, they are more likely to see above average emergency call rates this month. How would you respond to their position?

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