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The following 4 questions are based on the following information:You and your friends have decided to go to The Kentucky Derby. There are 12 horses in the race. How many ways can the horses come in first, second, or third?Q1: Is this an example of a combination or a permutation?Q2: What is N?Q3: What is r?Q4: What is the calculated value for this example?The following 4 questions (Q5 to Q8) are based on the following information:You have 16 friends that you want to invite to dinner. However, you dining room tableonly seats 6 people. Since, you will take up one seat, you can only have five friends at one time.How many different groups of guests can you have?Steps for Calculation:Q5: Is this an example of a combination or a permutation?Q6: What is N?Q7: What is r?Q8: What is the calculated value for this example?The following 2 questions (Q9 to Q10) are either "True" or "False"Q9: With a combination 'order matters'.Q10: 5! is equal to 120.Q11: Which one of the following is NOT one of the major uses of the CPI?A. The CPI is used to evaluate and determine economic policy.B. The CPI is used to compare prices in different years.C. The CPI is used to determine salary and price adjustments.D. All of the above three answers are major uses of the CPI.Q12: Using the 1989 base as a base, the price index for computers is now 125. What does thisindex number mean?A. price of computers has decreased 25% since 1989B. price of computers has increased 25% since 1989C. price of computers has increased 125% since 1989D. none of the above three answers are correctQ13: A _____________ economic indicator is one whose changes lag behind or follow changes in the economy.A. LaggingB. CoincidenceC. LeadingQ14: Some criticisms of the CPI include all of the following except:A. the market basket used in the CPI may not reflect current spending prioritiesB. the CPI does not adjust for changes in qualityC. the CPI takes advantage of sale pricesD. the CPI does not measure prices for rural AmericansThe following 2 questions (Q15 to Q16) are based on the following information:The CPI's at the start of each decade from 1940 to 1990 were:Year 1940 1950 1960 1970 1980 1990CPI 14.0 24.1 29.6 38.8 82.4 130.7Q15: What was the rate of inflation for the 1950's, as measured by the percentage change in the CPI?Q16: What was the rate of inflation for the 1970's, as measured by the percentage change in the CPI?Q17: Name the major category added for the market basket of goods and services in 1998?Q18: Tuition at University Z was $1200 per quarter in 1985 (CPI = 107.6). How much shouldtuition be in 2001 adjusted for inflation (CPI = 175.1)? The following 2 questions (Q19 to Q20) are either "True" or "False"
Q19: 'Child care' is one of the eight major categories of goods and services in the market basket.Q20: The current 'base period' that we are on is 1982-1984.
Let's work with a really idealized normal distribution. We'll pretend that American 12-year-old boys have an average (mean) weight of 100 lbs.
The clinic estimates that the true population standard deviation is around $2,100. If the confidence level is 95%, find the required sample size in order to meet the desired accuracy.
If a student is randomly selected what is the possibility that the student is male and from out of state.
A sample has just been taken with the following lengths: 21.25, 22.0, 21.5, 20.75, 21.25, 21.35, 21.35, 21.35, 21.35, 21.35, 21.35, and 21.35. Is the new seamstress performing at an acceptable quality level?
They then call these 100 people. Does this sampling plan result in a random sample? Simple random sample? Explain.
At the .10 significance level, can we conclude that there is a difference in the length of time the two types of treatment lasted?
Suppose that each passenger may get out of the elevator at either of the 2nd or the 3rd floor. Note that 8 passengers are different. How many ways may the 8 passengers get out of the elevator?
Assume that cars are independent regarding to their paint quality. Each car has a 90% chance of passing the test. What is the probability that 3 of the next 6 cars will fail the test?
The following show the hours of sleep on weeknights for a sample of individuals age 49 and younger and for a sample of individuals age 50 and older.
Let = the sample mean of the 100 scores from University X, and = the sample mean of the 100 scores from University Y. What is the probability that will x be greater than y?
Suppose the investor is to invest a total of $10,000, what is the expected value of perfect information for investor.
Determine the coefficient of determination. Assuming a direct relationship between the variables, what is the coefficient of correlation?
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