The average amount of money that people spend at Don Mcalds fast food place is $7.2400 with a standard deviation of $ XXXXXXXXXXcustomers are randomly selected. Please answer the following questions,...

The average amount of money that people spend at Don Mcalds fast food place is $7.2400 with a standard deviation of $1.8500. 43 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution.

1. What is the distribution of XX? XX ~ N(,)


2. What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)


3. What is the distribution of ∑x∑x? ∑x∑x ~ N(,)