One of the authors wanted to determine the effect of changing answers on multiple-choice tests. she studied the tests given by another professor, who had told his students before their exams that if they had doubts about an answer they had written, they would be better off not changing their initial answer. the author went through the exams to look for erasures, which indicate that the first choice was changed. in these tests, there is only one correct answer for each question. use the bar chart to answer the question below.

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

Acompany that makes shopping carts for supermarkets and other stores recently purchased some new equipment that reduces the labor content of the jobs needed to produce the shopping carts. prior to buying the new equipment, the company used 6 workers, who produced an average of 79 carts per hour. workers receive $16 per hour, and machine coast was $49 per hour. with the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by $11 per hour while output increased by four carts per hour. a) compute the multifactor productivity (mfp) (labor plus equipment) under the prior to buying the new equipment. the mfp (carts/$) = (round to 4 decimal places). b) compute the productivity changes between the prior to and after buying the new equipment. the productivity growth = % (round to 2 decimal places)

The blumer company entered into the following transactions during 2012: 1. the company was started with $22,000 of common stock issued to investors for cash. 2. on july 1, the company purchased land that cost $15,500 cash. 3. there were $700 of supplies purchased on account. 4. sales on account amounted to $9,500. 5. cash collections of receivables were $5,500. 6. on october 1, 2012, the company paid $3,600 in advance for a 12-month insurance policy that became effective on october 1. 7. supplies on hand as of december 31, 2010 amounted to $225. the amount of cash flow from investing activities would be: