A statement that there is no relationship between two variables in a population is called __________.
What is a null hypothesis.
100
Calculating probability by the proportion of time it occurs over the long run.
What is relative frequency?
100
The reason someone would pay more to have the probability of winning changed from 95% to 100% than they would to have the probability increased from 10-15%.
What is the certainty effect?
100
The measure of prices at one time period relative to another tine period.
What is the price index number?
100
The standardized score for the results of a Gallup poll that found of 800 random drivers surveyed, 70% thought they were a "better than average driver."
What is 12.5?
200
The test used to determine if there is a relationship between two categorical variables.
What is a Chi square test?
200
Two outcomes that cannot happen at the same time
What is mutually exclusive?
200
The strategy used by supermarkets when they use the sign 10 for $10.
What is anchoring?
200
Your parents bought a house in 1983 or $110,000 and you want to determine the price of a comparable house in 2012, using the CPI for 1983 of 100 and the CPI for 2012 of 213.
What is $234,300?
200
The answer to whether a show will be cancelled is determine by the viewership of fa sample being less than 17%. If 20% of viewers in the country watch a show and a random sample of 2500 is taken. The likelihood of this sample cancelling the show.
What is unlikely - the standardized score is -3.75.
300
The probability of observing a test statistic as extreme as the one observed or more if the null hypothesis is really true.
What is the p-value?
300
The expected value of a lottery where the price of a ticket is $5 with a .45% chance of winning $1000.
What is -$0.50?
300
The mistakes made when thinking the probability of B is greater than the probability of A.
A- the man dropped his wallet
B- the man was carrying coffee in one hand and an umbrella in another and dropped his wallet on the street.
What is the conjunction fallacy?
300
If the price of a stamp in 1970 was 8 cents and the CPI for 1970 was 38.8 whereas for 2012 it was 229.6, what would that same stamp cost in 2012 if it is just adjusted for inflation?
What is 47 cents?
300
If a weight loss program has an average loss of 8 pounds with a standard deviation of 5 pounds. When a sample of 25 people is taken, 68% of the sample should have a weight loss in this range.
What is 7-9 pounds?
400
Yes No Total
<30 100
>30 300
Total 120 280 400
If this table represents the results for a survey. What is the expected value for those under 30 who voted "Yes".
What is 30?
400
The probability of not having a boy until the third try if the probability of having a boy is .51.
What is .122?
400
The misconception that the long-run frequency of an event should apply in the short run.
What is the gambler's fallacy?
400
In 1977 the president had a salary of $200,000 just as he did in 1994. If the CPI in 1977 was 60.9 and the CPI in 1994 was 148.4. The amount of money the president "lost" in 1994 by his salary not being adjusted for inflation.
What is $287,356.32?
400
The Rule that describes the frequency curve of sample proportions that would result from repeated samples of the same size.
What is the Rule for Sample Proportions?
500
Yes No Total
<30 30 70 100
>30 90 210 300
Total 120 280 400
Yes No Total
<30 23 77 100
>30 97 203 300
Total 120 280 400
The Chi Square statistic of this sample.
What is 2.88?
500
The process one could use to estimate a probability if the situation was one in which the calculation is complex.
What is simulation?
500
If 100,000 people are in a sample with the probability of having a serious condition is 10% and the test for it has a sensitivity of 80% and a specificity of 90%. The probability of that the person has the condition when the test says she does.
What is 7.5%
500
Year tuition
Freshman $9,500.00
Sophomore $10,260.00
Junior $11,700.00
Senior $12,200.00
The tuition index for the junior year using freshman year as a base.
What is 123?
500
The mean and standard deviation of the bell-shaped distribution of the sample means from various samples.