Business, 19.10.2021 14:00 edjiejwi

The Pew Research Centers Report entitled "How Americans value public libraries in their communities," released December 11, 2013, asked a random sample of 6224 Americans aged 16 and over, "Have you used a Public Library website in the last 12 months?" In the entire sample, 30% said "yes." But only 17% of those in the sample over 65 years of age said "yes." Which of these two sample percents will be more accurate as an estimate of the truth about the population? A. The result for those over 65 is more accurate because it is easier to estimate a proportion for a small group of people.
B. Both are equally accurate because both come from the same sample.
C. The result for the entire sample is more accurate because it comes from a larger sample.
An experiment that claimed to show that meditation reduces anxiety proceeded as follows. The experimenter interviewed the subjects and rated their level of anxiety. Then the subjects were randomly assigned to two groups. The experimenter taught one group how to meditate and they meditated daily for a month. The other group was simply told to relax more.
At the end of the month, the experimenter interviewed all the subjects again and rated their anxiety level. The meditation group now had less anxiety.
Psychologists said that the results were suspect because the ratings were not blind.
Step 1:
Explain what the results were suspect because the ratings were not blind means.
A. It means that the experimenter knew which subjects were taught to meditate.
B. It means that the subjects could see the experimenter.
C. It means that the subjects were allowed to choose between meditation or relaxation.
D. It means that the subjects were not randomly assigned to the groups.
Step 2:
Explain how lack of blindness could bias the reported results.
A. There were not enough subjects, who meditated daily.
B. The experimenter may have some expectation about whether or not meditation will lower anxiety; this could unconsciously influence the end-of-month assessment.
C. Subjects who were told to relax more, may have reported a high level of anxiety, because of their belief that relaxing more reduces anxiety.
D. Subjects who meditated daily, may have reported a low level of anxiety, because meditation really reduces anxiety.

Answers: 2

Show answers

Another question on Business

Business, 22.06.2019 08:30

Which of the following is an example of search costs? a.) driving to a faraway place to find available goods b.) buying goods in some special way that is outside the normal channels c.) paying a premium cost for goods d.) selling extra goods for a discount price

Answers: 1

Answer

Business, 22.06.2019 21:10

This problem has been solved! see the answerthe xyz corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. a survey of 23 randomly chosen employees reveals the data shown below. because of the casual sampling methodology in this survey, the sample sizes are unequal. research question: are the mean annual attendance rates the same for employees in these three departments? days worked last year by 23 employees department days worked budgets (5 workers) 278 260 265 245 258 payables (10 workers) 205 270 220 240 255 217 266 239 240 228 pricing (8 workers) 240 258 233 256 233 242 244 249 picture click here for the excel data filefill in the missing data. (round your p-value to 4 decimal places, mean values to 1 decimal place and other answers to 2group mean n std. dev variancesbudgets payables pricing total one factor anova source ss df ms f p-value treatment error total

Answers: 2

Answer

Business, 22.06.2019 21:20

White truffles are a very prized and rare edible fungus that grow naturally in the countryside near alba, italy. suppose that it costs $200 per day to search for white truffles. on an average day, the total number of white truffles (t) found in alba is t = 20x − x 2 , where x is the number of people searching for white truffles on that day. white truffles can be sold for $100 each. if there is no regulation, how many more people will be searching for white truffles than the socially optimal number?

Answers: 1

Answer

Business, 22.06.2019 22:40

In a fixed-term, level-payment reverse mortgage, sometimes called a reverse annuity mortgage, or ram, a lender agrees to pay the homeowner a monthly payment, or annuity, and expects to be repaid from the homeowner’s equity when he or she sells the home or obtains other financing to pay off the ram. consider a household that owns a $150,000 home free and clear of mortgage debt. the ram lender agrees to a $100,000 ram for 10 years at 6 percent. assume payments are made annually, at the beginning of each year to the homeowner. calculate the annual payment on the ram.

Answers: 1

Answer

You know the right answer?

The Pew Research Centers Report entitled "How Americans value public libraries in their communities,...

Questions