The manager of John’s supermarket received complaints from Cashiers at the supermarket that many customers who used the express check-out lane have
more than the stipulated number of items for the lane. The express check-out
lanes are limited to customers purchasing 10 or fewer items. A recently taken
random sample of 150 customers entering express lanes at this supermarket
found that 84 of them had more than 10 items.
a. What is the point estimate of the mean number of customers who enter
the express lanes with more than 10 items? (2 mark)
b. Construct a 99% confidence interval for the percentage of all customers
at this supermarket who enter express lanes with more than 10 items (6
marks)
c. What does the 99% confidence interval mean from part (b)? (2 marks)

Leon and sara are arguing over when the best time is to degrease soup. leon says that it's easiest to degrease soup when it's boiling. sara says it's easiest to degrease soup when it's cold. who is correct? a. neither leon nor sara is correct. b. leon is correct. c. both leon and sara are correct. d. sara is correct. student b   incorrect which following answer correct?

The interaction of individual choices because a type of fish is on the verge of extinction, the government imposes rules that prohibit fishing in the publicly owned spawning grounds. at first owners of fshing bouts complain about this restriction on where they can fish, but soon they notice that the number of adult fish swimming outside the protected area is much higher than it was before. with the restriction, each fishing boat ends up catching more fish than it did before the r which of the following principles of economic interaction best describes this scenario? o there is a tradeoff between equality and efficiency o markets usually lead to efficiency. o when markets do not achieve efficiency,government intervention can improve overall welfare o markets allocate goodseffectively

Which statement or statements are implied by equilibrium conditions of the loanable funds market? a firm borrowing in the loanable funds market invests those funds with a higher expected return than any firm that is not borrowing. investment projects which use borrowed funds are guaranteed to be profitable even after paying interest expenses. the quantity of savings is maximized, thus the quantity of investment is maximized. a loan is made at the minimum interest rate of all current borrowing.