EC/315 Midterm Examination Directions: This test is open-book and open notes and covers the content from weeks 1 through week 4 of EC/315. The test will be typed and submitted in the Dropbox marked Midterm Exam. The midterm is due the last day of Week 4. PROBLEM 1 (Weight 40 points). NBC TV news‚ in a segment on the price of gasoline‚ reported last evening that the mean price nationwide is $1.50 per gallon for self-serve regular unleaded. A random sample of 35 stations in the Milwaukee
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e. Print (and include in your assignment) the histogram of the 1‚000 values you generated from this exponential distribution. What is the shape of this distribution?———————– 2. Normal distribution: Generate and store in column c3 10‚000 values from the standard normal distribution as follows: random 10000 c3; normal. [3] a. Print (and include in your assignment) the histogram for these data. What is the shape of this histogram? Symmetric [3] b. What is the value on the horizontal axis around
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NUR 0088 Z-Score Practice 1. When raw scores from normal distribution are converted to standard scores‚ the resulting distribution has a mean equal to ________ and SD equal to _________. 2. Scores on a particular test are normally distributed with a mean of 70 and an SD of 15. Between what two scores would you expect? a. 68% of the scores to fall between ____________ and _____________? b. 95% of the scores to fall between ____________ and _____________? 3. A distribution of scores has
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could not get over how difficult his writing style was to interpret. His form of writing is not something that most people who are not scientists are use too. From being written in a scientific and philosophical manner‚ to explaining a paradigm and normal science‚ to using words that I was trying to look up in the dictionary on every single page. The one thing I did care for was his redundancy in his book. His redundancy will grab your attention telling you to pay attention to this certain word or
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External validity: degree to which you can generalize the results of your study to some underlying population T-test One sample t-test – A: data should arise from a normal population Paired t-test – A: differences should arise from a normal population Two sample t-test – A: samples must be independent‚ arise from a normal distribution &
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passenger comfort and safety? Use the available information to determine the sitting distance. Identify the choices and decisions that were made in that determination. Mean Standard Deviation Distribution Males 23.5 in. 1.1 in. Normal Females 22.7 in. 1.0 in. Normal Part I- Answer: In order for an airline company to be profitable‚ it has to differentiate itself from others by focusing on customers’ comfort and safety. That being said‚ an airline cannot satisfy everyone as well as it cannot
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STATISTICS TEST Length: 1090 words (3.1 double-spaced pages) Rating: Red (FREE) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Statistics are necessary for scientific research because they allow the researchers to analyze empirical data needed to interpret the findings and draw conclusions based on the results of the research. According to Portney and Watkins (2009)‚ all studies require a description of subjects and responses that are obtained through measuring central
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DESCRIPTIVE STATISTICS & PROBABILITY THEORY 1. Consider the following data: 1‚ 7‚ 3‚ 3‚ 6‚ 4 the mean and median for this data are a. 4 and 3 b. 4.8 and 3 c. 4.8 and 3 1/2 d. 4 and 3 1/2 e. 4 and 3 1/3 2. A distribution of 6 scores has a median of 21. If the highest score increases 3 points‚ the median will become __. a. 21 b. 21.5 c. 24 d. Cannot be determined without additional information
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Direct Labor (5 hours @ P7.50 / hr) 37.50 Factory Overhead: Variable (P3.00 per direct labor hour) 15.00 Fixed (P4.00 per direct labor hour) 20.00 Standard Cost per unit P 80.00 Normal volume per month is 40‚000 standard labor hours. Jejemon’s january budget was based on normal volume. During January Jejemon’s produced 7‚800 units‚ with records indicating the following: Direct Materials purchased 25‚000 lbs @ P2.60 Direct Materials used 23‚100 lbs Direct labor
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Ski Jacket Production Executive Summary The problem is to determine the optimal production level of the Egress new designed jacket given the uncertainty in the forecasted demand. As oppose to determining a single profit value in the deterministic approach‚ the probabilistic method will incorporate the uncertainty in estimated demand and provide insights of the range of profit outcomes and its associated risk (deviation from mean). The key issue is to understand impact of demand uncertainty and
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