Question Bank for QT -1 –POQ 511 Topic : A) Descriptive Statistics : A1. A bank recorded the age at which an individual first opened a Savings Bank Account and were as follows: 42 44 52 32 23 25 34 33 37 18 19 18 14 16 18 18 23 21 18 23 24 24 26 28 32 43 33 34 19 23 22 21 18 19 18 22 25 24 54 20 21 17 22 24 25 22 23 5 8 29 18 16 17 15 19 21 32 33 34 35 36 37 23 24 25 21 22 33 33 43 27 28 29 30 31 33 17 25 23
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Name: ____________ Date: ______________________________________________________________________________ □ EXERCISE 31 1. What are the two groups whose results are reflected by the t ratios in Tables 2 and 3? The two groups with results on the effects on cardiovascular risk factors and the programs effective on health behavior have paid t-ratios 2. Which t ratio in Table 2 represents the greatest relative or standardized difference between the pretest
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Prepare answers to the following assignments from the e-text‚ _Applied Statistics in Business and Economics_‚ by Doane and Seward: Chapter 12 CHAPTER REVIEW #1 Chapter Exercises 12.48 and 12.50 Chapter 13 Chapter Exercises 13.30 and 13.32 Chapter 14 Chapter Exercise 14.16 CHAPTER 12 CHAPTER REVIEW #1 LIST TWO LIMITATIONS OF BIVARIATE REGRESSION. Often simplistic (multiple relationships usually exist. Biased estimates‚ even if relevant predictors are omitted. WHY IS ESTIMATING A MULTIPLE
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Chapter 13: Determining Optimal Level of Product Availability Exercise Solutions 1. 0.2941 Optimal lot-size == NORMINV(0.2941‚100‚40) = 78.34 Given that p = $200‚ s = $30‚ c = $150: Expected profits = (p – s) NORMDIST((O – )/‚ 0‚ 1‚ 1) – (p – s) NORMDIST((O – )/‚ 0‚ 1‚ 0) – O (c – s) NORMDIST(O‚ ‚ ‚ 1) + O (p – c) [1 – NORMDIST(O‚ ‚ ‚ 1)] = $2‚657 Expected overstock = (O – )NORMDIST((O – )/‚ 0‚ 1‚ 1) + NORMDIST((O – )/‚ 0‚ 1‚ 0) = 7.41 Expected understock = ( – O)[1 –
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In the lab‚ five test were completed. The Bruce Protocol Test‚ Balke Treadmill Test‚ Q Test‚ Wingate‚ and Cooper Run. The Bruce Protocol Test‚ Balke Treadmill Test‚ and Q Test are GXT test (Graded Exercise Test). The GXT showed how the body responds to exercise. All of these tests were voluntary which allowed the subject to stop before hitting their maximum effort. It will be hypothesized that for each test completed time‚ grade percentage‚ and/or speed made a difference. Everyone has different anaerobic
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Exercise 27 5. In the legend beneath Figure 2[->0]‚ the authors give an equation indicating that systolic blood pressure is SBP = 43.2 + 0.17x. If the value of x is postnatal age of 30 hours‚ what is the value for Ŷ or SBP for neonates ≤1‚000 grams? Show your calculations. Y = a + bx 43.2 + 0.17(30) = 48.3 The SBP for neonates ≤1‚000 grams at 30 hours is 48.3. 6. In the legend beneath Figure 2[->1]‚ the authors give an equation indicating that systolic blood pressure is SBP = 50.3 + 0.12x
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Creating Black Americans‚ by Nell Irvin Painter Review and Discussion Questions Chapter 13: Protest Makes a Civil Rights Revolution Review Questions 1. What was the role of Ella Baker (1903-1986) with regard to the Southern Christian Leadership Conference (SCLC) and the Student Nonviolent Coordinating Committee (SNCC)? Why is this important? 2. How was Freedom Summer of 1964 different from earlier southern civil rights struggles of the 1960s? 3. What were the political and racial
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Graded Assignment Document-Based Question: Religious Views on War Complete and submit this assignment by the due date to receive full credit. (45 points) 1. To complete this Graded Assignment‚ retrieve the Religious Views on War DBQ. Use this document with its essay instructions and the DBQ Checklist to complete this DBQ essay. Please consult the rubric throughout the process. Using the documents‚ compare the views of major world religions on war. What additional kind of document(s) would you need
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Exercise 36 Answers 1. Since the F value is significant‚ based on the p-value of 0.005 which is less than 0.05 which is sufficient to reject the null hypothesis. This suggests that there is a difference in the control and treatment groups. 2. Since the p- value is less than 0.05 and therefor the null hypothesis can be rejected. This presents that the mean‚ difficulty and mobility scores‚ must be different 3. The result was statistically significant with a probability score of p < 0.001.
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Last name: First name: Student #: STA 304H1 F/1003H F SUMMER 2009‚ First Test‚ May 28 (20%) Duration: 50min. Allowed: hand-calculator‚ aid-sheet‚ one side‚ with theoretical formulas and definitions only. [25] 1) A marketing analyst is asked to study the buying habits of shoppers at a national chain store (e.g. Sears). Suppose there are 150 stores around the country. (a) Describe the population of interest. (b) Describe in short a realistic sampling procedure for obtaining a representative
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