your prediction. 2. Using the MM207 Student Data Set: a) Select a continuous variable that you suspect would not follow a normal distribution. b) Create a graph for the variable you have selected to show its distribution. c) Explain why these data might not be normally distributed. d) Select a second continuous variable that you believe would approximate a normal distribution e) Create a graph to show its distribution. f) Explain why these data might be normally distributed. . 3
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3.6.2 Correlation Analysis Correlation analysis is one of the data analysis method use in quantitative research when researchers intended to examine the relationship between both variables (Research Methodology‚ n.d.). The Pearson’s Moment Correlation Coefficient (PMCC) ranges between +1 and -1.If the coefficient value is +1 and -1‚ it is an indication that the relationships between both variables are strong. A value of +1 indicate that there is a positive relationship between variables‚ means that
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Mean Define the sampling distribution μx̄ = Define the probability statement of interest P(z30 will give sampling distribution that is nearly normal fairly symmetric‚ n>15 The sampling distribution with have: Sampling Distribution of a Proportion Sampling Proportion Error = p – Sampling Distribution of P is approximated by a normal distribution if Where this applies: Mean = Standard Error = Z-Values for Proportions Using the sample distribution for Proportions Determine
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Numerical and Verbal Hypothesis Statement In business‚ small and large or personal the ability to have information to make a decision is essential. “Hypothesis testing is used in both science and business to test assumptions and theories and ultimately guide managers when faced making decisions.” (Doane & Seward‚ 2007‚ page 347‚ Chapter 9). We reviewed and analyzed the data set‚ Real Estate and developed a hypothesis test. The hypothesis test can be described with the following steps: Step 1:
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clearly and explain your reasoning in detail. You will not receive a credit if the instructor cannot understand what you have done because of insufficient explanation. (Q1-Q2) Teddy Bower the Newsvendor (To answer these two questions‚ use the Standard Normal Distribution Function Table; one of the purposes of these questions is to give you a hands-on experience in using the table‚ which you will need to do in the final exam.) Teddy Bower is an outdoor clothing and accessories chain that purchases a line
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Hence LL Bean should order 12 000 * 1‚179975 = 14160 items to maximize its profit. (We used the distribution derived from the data rather than the normal distribution with the same mean and standard deviation. Indeed despite the important gaps between the different percentiles of the real distribution‚ we reject the hypothesis that the distribution is normal at a 5% level as per the Anderson Darling test result with p-value= 3%). 3. Assuming LL Bean manages to derive the correct forecast‚ what do
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ADM 2304 – Assignment 1 Due: Wednesday‚ February 4 Thomas Duong 6793106 Question 1 a) Mean of losses Mean of losses = 37.9263 c) Variable N Mean StDev SE Mean 90% CI C2 30 36.91 10.54 1.92 (33.64‚ 40.18) C3 30 36.01 9.84 1.80 (32.95‚ 39.06) C4 30 36.70 11.75 2.15 (33.06‚ 40.35) C5 30 40.24 8.62 1.57 (37.56‚ 42.91) C6 30 37.96 10.96 2.00 (34.56‚ 41.36) C7 30 37.08 9.63
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City Frustration‚ anxiety‚ and tension the perfect storm for an underachieving student. In the video FAT city Rick Lavoie runs a workshop to help understand what a learning disabled child go’s through every day inside a classroom. Things that a normal student would be able to comprehend with minimal effort could be a colossal struggle for a student with a learning disability. It was an eye opener to people who haven’t been in the classroom and Lavoie used many exercises to put the average person
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The coefficient of friction values range from 0.21 – 0.36 giving us an average µ of 0.29. During Part B (Determination of the angle of repose) of this experiment‚ using summation of forces along the x- and y-axis can be equated to zero‚ hence the normal force is equal to Wcosθ and friction is equal to Wsinθ. In every trial‚ the plane was being inclined such that the wooden block was observed in a uniform sliding motion. We recorded the data for vertical height (h) and horizontal distance (b) simultaneously
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Ideal Self‚ and Economic Incentive have a normal population distribution (p-value < 5%)‚ and only Direct Contact shows no deviation from normal distribution (p-value > 5%) (Field‚ 2013). However‚ the number of the sample (N=115) is large enough to consider it a non-issue. The Shapiro-Wilk normality test also rejects that the TOEIC score has a normal distribution since the p-value is .000 which is less than 5 percent. For a distribution to be considered normal‚ p-value has to be greater than 5% (Field
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