Question Six

a) A random sample of n = 100 frames of 100mm x 50mm was selected from a consignment of 500 frames. When their depth was measured it was found that the mean was 106mm and standard deviation was 3.5mm. Construct a 90% confidence interval estimate of the mean depth of all the frame in the entire consignment.

Which of the following statements accurately describes how costs and benefits are calculated?

1. gdp is calculated by summing consumption, investment, and exports of all final goods and services produced within the borders of a given country during a specific period the dollar value of all final goods and services produced within the borders of a given country during a specific period government expenditures within the borders of a given country during a specific period the quantity of all final goods and services produced within the borders of a given country during a specific period

An investment counselor calls with a hot stock tip. he believes that if the economy remains strong, the investment will result in a profit of $40 comma 00040,000. if the economy grows at a moderate pace, the investment will result in a profit of $10 comma 00010,000. however, if the economy goes into recession, the investment will result in a loss of $40 comma 00040,000. you contact an economist who believes there is a 2020% probability the economy will remain strong, a 7070% probability the economy will grow at a moderate pace, and a 1010% probability the economy will slip into recession. what is the expected profit from this investment?