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An auditor wishes to estimate what proportion of bank's commercial loan files are incomplete. The auditor randomly samples 100 files and finds out 9 are incomplete.
A business wants to estimate true mean annual income of its customers. The business needs to be in $500 of true mean.
An auditor wants to estimate what proportion of bank's commercial loan files is incomplete. The auditor wants to be in 4% of true proportion when using the 95% confidence level.
A business wants to estimate true mean annual income of its customers. It randomly samples 200 of its customers. The mean annual income was the $52,500 with standard deviation of $1,800.
There are many manners to produce crooked dice. To load a die so that six comes up too often and 1 (which is opposite 6) comes up too seldom, add the bit of lead to the filling of spot on the 1 face
The scores of high school seniors on ACT college entrance examination in the 2003 has mean = 20.8 and standard deviation = 4.8. The distribution of scores is only roughly normal.
A $1.00 bet is a state lottery's pick 3 game pays $500 if the three-digit number you select exactly matches the winning number, which is drawn at random. Here is distribution of payoff X:
Seven coloured balls are placed in bucket :3 blue, 2 red, and 2 green and one ball is randomly sampled, then set aside. Then a second ball is randomly chosen What is
A carnival game costs $2 to play. The player first flips the coin, then rolls the pair of dice, to win the player must get the head outcome followed by a"7" outcome on dice. If the game is fai
Many economics students are unprepared for multiple-choice quiz with 25 questions, and all of their answers are guesses. Each question has 5 possible answers, and only one of them is correct.
Atest comprises multiple- choice questions each having 4 possible answers (a,b,c,d) one of which is correct. Suppose that you guess the answers to 6 such questions.
To compute weighted aggregate price index using Laspeyres and Paasche method.
Identify the kind of forecasting approach for a limited historical time series data.
Recognise the trend on the dependent variable Y per quarter. How A contractor developed a multiplicative time series model to forecast the number of contracts in future quarters
Prediction the value of Y for the 1st quarter of 1999. Explain a contractor developed a multiplicative time series model to forecast the number of contracts in future quarters
To identify the quarter that has the greatest seasonality. Explain A contractor developed a multiplicative time series model to forecast the number of contracts in future quarters
Equate 2-month moving average and Exponential smoothing using MAD. The subsequent data represents demand for company ABC's products for the last 10 months.
To make 3-month and 2-month moving average for the time series and The subsequent data represents demand for company ABC's products for the last 10 months.
Correlation coefficient using Goodman and Kristal's gamma. A investigator hypothesizes that parents with school-aged children are more likely to vote in favor
Supposing that the touch therapist have no special powers and made random guesses, find out the mean and standard deviation for numbers of correct responses in group of 280 trials.
Compute Spearman rank correlation as well as test the significance of correlation. Two groups of students are enquired to rank their preference for six types of soft drinks.
Compare the two message techniques using Wilcoxon signed-rank test. A example of 10 persons is used to measure the effectiveness of two massage techniques
Calculate the contrasts W0 and W1 and contrasts W0 and W1 using COMPUTE statements
Describe the meaning of alternatives, criteria and states of nature. How are they employed in decision analysis? Give a personal example of when and how you could have employed decision analysis to as
Test for survivability being independent on ticket class or crew status for survivors of the sinking of HMS titanic. Employ the following contingency table and significance level of 5%.