Test | Midterm Exam | Started | 2/5/13 2:51 PM | Submitted | 2/5/13 4:53 PM | Status | Completed | Score | 165 out of 200 points | Time Elapsed | 2 hours, 1 minute out of 4 hours. | Instructions | | Question 1 5 out of 5 points | | | Deterministic techniques assume that no uncertainty exists in model parameters. Answer | | | | | Selected Answer: | True | Correct Answer: | True | | | | | Question 2 5 out of 5 points | | | A continuous random variable may assume only integer values within a given interval. Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | Question 3 5 out of 5 points | | | A joint probability is the probability that two or more events that are mutually exclusive can occur simultaneously. Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | Question 4 5 out of 5 points | | | A decision tree is a diagram consisting of circles decision nodes, square probability nodes, and branches.Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | Question 5 5 out of 5 points | | | Simulation results will always equal analytical results if 30 trials of the simulation have been conducted.Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | Question 6 5 out of 5 points | | | Excel can only be used to simulate systems that can be represented by continuous random variables.Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | Question 7 5 out of 5 points | | | Qualitative methods are the least common type of forecasting method for the long-term strategic planning process.Answer | | | | | Selected Answer: | False | Correct Answer: | False | | | | | Question 8 5
$500 (= $25 ´ 20 radios not stolen due to hiring 1 guard) c. 4 Chapter 4 Applied Problem 1. a. The intercept a is expected to be positive because even if no advertising is undertaken, some sales are expected to occur. b is expected to have a positive sign since Vanguard's sales are positively related to its level of advertising expenditures. Vanguard's sales should be inversely related to its rivals' expenditures on advertising, so c is expected to be negative. b. a is the sales of Bright Side detergent when neither Vanguard nor its rivals advertise.
2.12 b. 1.734 c. -1.740 d. 1.740 ANSWER: d -same process but now go to one tailed α=0.05 and dof = 17 4. Read the t statistic from the table of t distributions and circle the correct answer. A one-tailed test (lower tail), a sample size of 10 at a .10 level of significance; t = a. 1.383 b.
Because when you plug the binary numbers into the 8 bit conversion table, the two zeros before the 10 equal nothing. So 10 and 0010 have the same decimal number. 128 64 32 16 8 4 2 1 128 64 32 16 8 4 2 1 1 0 = 2 0 0 1 0 = 2 3. Based on the breakdown of the binary and decimal systems in this lab, describe the available digit values and the first four digits of a base 5 numbering system. You can use the binary system as a reference, where the available digit values are 0 and 1 and the first four digits are 1, 2, 4, and 8.
If you choose 40 random employees from the corporation, the standard error would equal 6/Square root of 40 = .95 days. The 12 days in this department corresponds to (12-8.2)/.95 = 4 standard errors above the corporation average of 8.2. This is much higher than two or three standard errors, and it appears to be beyond chance variation. Chapter 9 Exercise 3 The p- value tells you how likely it would be to get results at least as extreme as this if there was no difference in the taste and only chance variation was operating. In this problem, p-value of 0.02 means that, if there is no difference in taste, then there is only 2% chance that 70% or more people would declare one drink better than the
4,25,000 d.None of these 80. Total property of Ghosh Babu (in Rs.lakh) is (a) 5.0 (b) 7.5 81. (c) 10.0 (d) 12.5. If Ghosh Babu had equal number of gold and silver bars, the number of silver bars he has is (a) 90 (b) 60 (c) 75 (d) 55 CAT 1990 Actual Paper Page 11 Questions 82-84 : The following questions relate to a game to be played by you and your friend. The game consists of a 4 x 4 board (see below) where each cell contains a positive integer.
* I would say that this would be an observational study because the characteristics of this population were being observed and the sample population in the study were in no way influenced by the researcher. They were solely asked to answer the question and their answers were not manipulated. 3. In the following scenario what is the statistic and the parameter it would estimate. A recent study of 460 drivers age 70 and over by the National Highway Traffic Safety Administration reported that 75% of those drivers had uncorrected vision problems.
Intel’s response to the flaw was "An error is only likely to occur [about] once in nine billion random floating point divides", and that "an average spreadsheet user could encounter this subtle flaw once in every 27,000 years of use." (Janeba, 1995) What was the flaw in the Pentium Flaw? The article I read on what the Pentium Flaw was said: “The mathematical basis for the bug: The built-in divider in the Pentium FPU uses a radix 4 SRT algorithm. The strength of this algorithm is that it can compute two (binary) digits of a quotient per step, rather than only one per step as in earlier Intel FPU's. The weakness is that the algorithm needs a stored table of values (a "division table", not unlike a "multiplication table").
Sample: I-2B Score: 5 Part (a)(i): 2 points were earned for the correct setup and the correct answer. Part (a)(ii): 1 point was earned. The student makes computational errors that limit the score. Part (b): No points were earned. The setup is nearly correct, but the computation of 10 m3 of infiltration into the surrounding soil should equal 100 m3.
Descriptive Statistics Overpriced MyTab (H1) Central Tendency: Mean = 46.80 Dispersion: Standard Deviation = 11.86 per age group Number: 400 Min/Max: 27/58 Confidence Interval: (z) 36.40-57.20 Competitor has Better Products (H2) Central Tendency: Mean=33.20 Dispersion: Standard Deviation = 8.84 Number: 400 Min/Max: 21/45 Confidence Interval: (z) 25.45-40.95 Descriptive Statistics Interpretation Overpriced MyTab (H1) 400 participants were randomly selected to complete a survey that asks yes or no questions. They were divided into 5 categories depending on their age (18-45). The data was normally distributed as shown by the p-value of .05. There is a 95% confidence that there are 36.40-57.20 persons in each age group that responded that they believe the MyTab is overpriced. Competitor has better product (if applicable) This data was also normally distributed.