dentify the parameter, Part II. For aaneter of interest is a Part a) A poll show
ID: 3335262 • Letter: D
Question
dentify the parameter, Part II. For aaneter of interest is a Part a) A poll shows that of Americans nterest is a mean or a proportion. 64% of Americans personally worry a great deal about federal spending and percent expect to get f the following situations, state whether the the budget deficit. b) Asuwhile newspaper revenues decreased by 6.4% rts that local TV news has show 2011 while nevw n a 17% increase in revenue between 2009 and high school and college students are asked whether or not they use geolocation e) In a survey, scho services on their smart phones. during this time peri tna survey, smart phone users are asked whether or not they use a web-based taxi service. ln a survey, smart phone users are asked how many times they used a web-based taxi service od. over the last year.Explanation / Answer
a) In this case, % of Americans has given so this is a proportion.
b) In this case, % increase and % decrease has been given so parameter of interest would be mean.
c) In this, we would have to compare the proportion of high school and college students and hence, the parameter of interest would be proportion.
d) In this, we are interested in a particular proportion of smart phone users and hence, the parameter of interest would be proportion.
e) In this, we are interested in the number of times the smart phone users used web based taxi services and hence, the parameter of interest would be mean.
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