Ahotel chain has four hotels in oregon. the general manager is interested in determining whether the mean length of stay is the same or different for the four hotels. she selects a random sample of n = 20 guests at each hotel and determines the number of nights they stayed. assuming that she plans to test this using an alpha level equal to 0.05, which of the following is the correct critical value?
f = 3.04approximately f = 2.76t = 1.9917none of these.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

answer: you need to organize this better it does not make sense.

step-by-step explanation: ?