The average amount of money that people spend at Don Mcalds fast food place is $7.2500 with a standard deviation of $2.0000.48 customers are randomly selected. Please answer the following
questions, and round all answers to 4 decimal places where possible and assume a normal
distribution.
a. What is the distribution of X? X - NG
b. What is the distribution of ?ī -NG
c. What is the distribution of S x? _ ~-
d. What is the probability that one randomly selected customer will spend more than $7.1470?
e. For the 48 customers, find the probability that their average spent is more than $7.1470.
f. Find the probability that the randomly selected 48 customers will spend less than $343.0560.
g. For part e) and f), is the assumption of normal necessary? Yes No
h. The owner of Don Mcalds gives a coupon for a free sundae to the 4% of all groups of 48
people who spend the most money. At least how much must a group of 48 spend in total to
get the free sundae? $

16

step-by-step explanation:

simplifying

5(x + -6) = 2(x + 3)

reorder the terms:

5(-6 + x) = 2(x + 3)

(-6 * 5 + x * 5) = 2(x + 3)

(-30 + 5x) = 2(x + 3)

reorder the terms:

-30 + 5x = 2(3 + x)

-30 + 5x = (3 * 2 + x * 2)

-30 + 5x = (6 + 2x)

solving

-30 + 5x = 6 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-30 + 5x + -2x = 6 + 2x + -2x

combine like terms: 5x + -2x = 3x

-30 + 3x = 6 + 2x + -2x

combine like terms: 2x + -2x = 0

-30 + 3x = 6 + 0

-30 + 3x = 6

add '30' to each side of the equation.

-30 + 30 + 3x = 6 + 30

combine like terms: -30 + 30 = 0

0 + 3x = 6 + 30

3x = 6 + 30

combine like terms: 6 + 30 = 36

3x = 36

divide each side by '3'.

x = 12

simplifying

x = 12

this should .

step-by-step explanation:

i'm pretty sure it would take 20 hours because it's half the men so you multiply the number of hours it takes by 2

the answer is a) y= 2 csc [0.5 (x+pi/2)]-1

step-by-step explanation: