Solution Found!
For each of the following situations, state whether the
Chapter , Problem 4.2(choose chapter or problem)
For each of the following situations, state whether the parameter of interest is a mean or a proportion. (a) A poll shows that 64% of Americans personally worry a great deal about federal spending and the budget deficit. (b) A survey reports that local TV news has shown a 17% increase in revenue between 2009 and 2011 while newspaper revenues decreased by 6.4% during this time period. (c) In a survey, high school and college students are asked whether or not they use geolocation services on their smart phones. (d) In a survey, smart phone users are asked whether or not they use a web-based taxi service. (e) In a survey, smart phone users are asked how many times they used a web-based taxi service over the last year.
Questions & Answers
QUESTION:
For each of the following situations, state whether the parameter of interest is a mean or a proportion. (a) A poll shows that 64% of Americans personally worry a great deal about federal spending and the budget deficit. (b) A survey reports that local TV news has shown a 17% increase in revenue between 2009 and 2011 while newspaper revenues decreased by 6.4% during this time period. (c) In a survey, high school and college students are asked whether or not they use geolocation services on their smart phones. (d) In a survey, smart phone users are asked whether or not they use a web-based taxi service. (e) In a survey, smart phone users are asked how many times they used a web-based taxi service over the last year.
ANSWER:Problem 4.2
For each of the following situations, state whether the parameter of interest is a mean or a proportion.
(a) A poll shows that 64% of Americans personally worry a great deal about federal spending and the budget deficit.
(b) A survey reports that local TV news has shown a 17% increase in revenue between 2009 and 2011 while newspaper revenues decreased by 6.4% during this time period.
(c) In a survey, high school and college students are asked whether or not they use geolocation services on their smartphones.
(d) In a survey, smartphone users are asked whether or not they use a web-based taxi service.
(e) In a survey, smartphone users are asked how many times they used a web-based taxi service over the last year.
Step by Step Solution
Step 1 of 2
(a)The poll shows a numerical value of federal spending and the budget deficit. So the parameter of interest is Mean.