Imagine you are hired by the California Avocado Commission to investigate how in-store advertising of Avocados affects organic avocado sales. The Avocado Commission partneredwith stores in Beverley Hills to advertise organic avocados in their produce section. They wantyou to run a regression of avocado sales on the amount of money spent on in-store advertising. Based on the results of the study, the are going to decide whether to expand this add campaignto the rest of the state. (a) Does this seem like a representative sample to you? Why or why not? If not, what can you say with this data?
(b) Imagine the commission makes any changes to the data set you give above. Now do you think you're results will be causal? What may be some other variables you want to control for?
(c) Pretend you cannot get any of the variables you list above. Lets try to sign the bias. Choose any one of the variables you list. Draw a Venn diagram like we did in class. Try to figure out what sign the bias will be
(d) The Avocado Commission is worried about controlling for the distance from a store to the nearest farmer's market. They want you to include the distance to the nearest farmer's market. One person on The Commission points out that there are a lot of families who visit California from other countries. He suggests including both the distance to the nearest farmer's market in miles and in kilometers because the people from outside of the U. S. will think of the distance in kilometers. Do you think this is a good idea? Why or why not? Explain any technicalities that help support your answer.

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.