\fBelow is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the relative frequency of the 2124 bin? Histogram for Year-End Audit Times Fro-quitemwl h 13-16 17-20 21-2' 25-23 29-32 Audit Times (Days) O a 0.14 O b. 2-5 O c_ 0.05 Q d. 0.25 The newest model of smart car is supposed to get excellent gas mileage. Athorough study showed that gas mileage (measured in miles per gallon) is normally distributed with a mean of 75 miles per gallon and a standard deviation of 10 miles per gallon. What value 0th represents the 5 percentile of this distribution? 0 a. 75 O b. 85 O c. 95 Q d. 105 Larger values of a have the disadvantage of increasing the probability of making a O a. Type I error 0 b_ normal probability error O c_ random sampling error 0 d_ Type 11 error The random variable X is known to be uniformly distributed between 2 and 12. Compute the standard deviation of X. O a. 2.887 O b. 3.464 O c. 8.333 O d. 12A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer if he or she is satisfied with the service. Who makes up the sample? O a. All customers of this restaurant O b. All survey respondents O c. The proportion of customers who say they are satisfied with their service O d. All customers who use the drive-thru window of this fast food restaurantIn a regression analysis what would be the value of the sum of squares due to regression (SSR) if the total sum of squares (SST) is 25.32 and the sum of squares due to error (SSE) is 6.89? Select one: O a. 31.89 O b. 19.32 O c. 18.43 O d. 15.32The exponential smoothing forecast for period 3* + l is a weighted average of the Select one: Q a. forecast value in period twith weight a and the actual value for period I with weight 1 a O b. actual value in period t + l with weight 0! and the forecast for period I with weight 1 a O C. forecast value in period t l with weight a and the forecast for period 1' with weight 1 (1 Q d. actual value in period twith weight a and the forecast for period 3* with weight 1 O{ The random variable X is known to be uniformly distributed between 2 and 12. Compute E(X), the expected value of the distribution. Oa. 4 Ob. 5 O c. 7 Od. 6A health conscious student faithfully wears a device that tracks his steps. Suppose that the distribution of the number of steps he takes is normally distributed with a mean of 10,000 and a standard deviation of 1,500 steps. How many steps would he have to take to make the cut for the top 5% for his distribution? 0 a. 7,533 O b. 8,078 O c. 10000 Q d. 12,467 The College Board initially scaled SAT scores so that the scores for each section were approximately normally distributed with a mean of 500 and a standard deviation of 100. Assuming scores follow a bell- shaped distribution, use the empirical rule to find the percentage of students who scored less than 400. O a. 32% O b. 84% O c. 68% O d. 16%The letter grades (A, B, C, D, F) of business analysis students are recorded by a professor. This variable's classification O a. cannot be determined O b. is time series data O c. is quantitative data O d. is categorical dataThe scatter chart below displays the residuals versus the dependent variable, x. Which of the following conclusions can be drawn based upon this scatter chart? Select one: 0 a. The residuals have a constant variance. 0 b. The model captures the relationship between the variables accurately. O C. The model underpredicts the value of the dependent variable for intermediate values of the independent variable. 0 d. The residual distribution is not normally distributed. In the probability table below, which value is a marginal probability'? Difficulty in Paper Level Challenging .03 O a. 0.1 O b. 1.0 O c. 0.5 Q d. 0.4 A health conscious student faithfully wears a device that tracks his steps. Suppose that the distribution of the number of steps he takes in a day is normally distributed with a mean of 10,000 and a standard deviation of 1,500 steps. What percent of the days does he exceed 13,000 steps? 0 a. 2.28% O b. 5% O c. 95% Q d. 97.72%