A shareholders' group, in lodging a protest, claimed that the mean tenure for a chief executive office (CEO) was at least eight years. A survey of companies reported in the Wall Street Journal found a sample mean tenure of 7.68 years for CEOs with a standard deviation of 6.36 years. a. Formulate hypotheses that can be used to challenge the validity of the claim made by the shareholders' group.- Select your answer -- Select your answer -b. Assume companies were included in the sample. What is the -value for your hypothesis test

7.68 is the right answer

Step-by-step explanation:

tickets for the harlem globetrotters

show at michigan state university in

2010 cost $16, $23, or, for vip seats, $40.

total revenue = 16x + 23y + 40z

if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, if 9 times as many $16 tickets were sold

as vip tickets,

x = 9z => x – 9z = 0, sales of all three kinds of tickets would

total $46,575.

16x + 23y + 40z = 46575, how many of each kind of ticket would

have been sold?

solve for x, y and z

x − 9z = 0

x − y − z = 55

16x + 23y + 40z = 46575

x = 1170

y = 985

z = 130

welcome!

question 1: step-by-step explanation:

1/4 of 84 = 84÷4= 21