In a survey of 1046 adults conducted by Bradley Corporation, subjects were asked how often they wash their hands when using a public restroom, and 70% of the respondents said "always."

a. Identify the sample and the population.

USA Today posted this question on its website: "How often do you seek medical information online?" Of 1072 Internet users who chose to respond, 38% of them responded with "frequently." What term is used to describe this type of survey in which the people surveyed consist of those who decided to respond? What is wrong with this type of sampling method?

In a survey conducted by TheKnot.com, 1165 engaged or married women were asked about the importance of a bended knee when making a maniage proposal. Among the 1165 respondents, 48% said that the bended knee was essential. Among the 1165 respondents, 93 said that a bended knee is corny and outdated. What percentage of respondents said that a bended knee is corny and outdated?

In a survey conducted by Opinion Research Corporation, 1000 adults were asked to identify "what is inappropriate in the workplace." Of the 1000 subjects, 70% said that mini ski rts were not appropriate in the workplace. Among the 1000 respondents, 550 said that shorts are unacceptab le in the workplace. What percentage of respondents said that shorts are unacceptable in the workplace?

In a study conducted by the Society for Human Resource Management, 347 human resource professionals were surveyed. Of those surveyed, 73% said that their companies conduct c1iminal background checks on all job applicants. What is the actual number of survey subjects who said that their company conducts criminal background checks on all job applicants?

In a survey of 1020 adul ts in the United States, 44% said that they wash their hands after riding public transportation (based on data from KRC Research). Are the numbers of subjects in such surveys discrete or continuous?

In a survey conducted by Opinion Research Corporation, 1000 adults were asked to identify "what is inappropriate in the workplace." Of the 1000 subjects, 70% said that mini ski rts were not appropriate in the workplace. What is 70% of 1000?

Suppose a country enacts a tax policy that discourages investment, and the policy reduces the investment rate immediately and permanently from $\bar{s}$ to $\bar{s}^{\prime}$. Assuming the economy starts in its initial steady state, use the Solow model to explain what happens to the economy over time and in the long run. Draw a graph showing how output evolves over time (put $Y_t$ on the vertical axis with a ratio scale and time on the horizontal axis), and explain what happens to economic growth over time.

How did William Lloyd Garrison, Frederick Douglass, and David Walker each propose ending slavery? What means did they use to try to convince politicians and the public that slavery should be abolished?

In a national survey, a random sample of people are chosen and asked whether they support a certain policy. Assume that everyone in the population is equally likely to be surveyed at each step, and that the sampling is with replacement (sampling without replacement is typically more realistic, but with replacement will be a good approximation if the sample size is small compared to the population size). Let n be the sample size, and let $\hat{p}$ and $p$ be the proportion of people who support the policy in the sample and in the entire population, respectively. Show that for every c > 0,

$$P ( | \hat { p } - p | > c ) \leq \frac { 1 } { 4 n c ^ { 2 } }$$

Revise the sentence to include appropriate business tone and positive language. Write the sentence in the text box below.

The IT department cannot make revisions to the webpage until after the executives make their decision public.

Heaney talks about “Requiem for the Croppies” in “Feeling into Words” (p. $1130$). Why do you think Heaney eventually stopped reading “Requiem for the Croppies” in public, which he did in the early $1970s$?

Foreign macroeconomic policy and fixed exchange rates: Take a look at a fixed exchange rate system, in which a number of nations (known as follower countries) bind their currencies to the currency of a single nation (called the leader country). The leading country is free to implement its own monetary policy because its currency is not pegged to those of nations that do not use a fixed exchange rate system. Consider the domestic nation a follower nation and the foreign nation a leader nation for the sake of this problem. Redo the analysis of second part of previous question.

Because of a membership drive for a public television station, the current membership is 125% of what it was a year ago. The current number of members is 7815. How many members did the station have last year?