horizons (eg. monthly, weekly): m E ( ri ) E (ri ) nE (ri ) i 1 i 1 n n 2 n n thus E (ri ) m / n thus Var (ri ) s 2 / n s Var ( ri ) Var (ri ) nVar (ri ) i 1 i 1 We have n=1/Dt intervals of length Dt in a year (eg. for monthly n=1/(1/12) = 12 intervals of length 1/12 of a year), therefore: E (ri ) m / n m / (1/ Dt ) mDt Var (ri ) s 2 / n s 2 / (1/ Dt ) s 2 Dt Sigma(ri ) s Dt Fundamentals of Futures and Options Markets, 8th Ed, Ch 13, Copyright ©
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GM533 PROJECT PART C: Regression and Correlation Analysis 1. 2. The equation of the ‘best fit’ line which describes the relationship between credit balance(y) vs size(X) is given as follows: y = 404.13x + 2581.9 3. The coefficient of correlation = 0.752483 Correlation coefficient, r is a measure of the degree of correlation or interdependence between two variables. The value of the correlation coefficient can range between -1 and +1. A negative value
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Test Value = 0 | | t | df | Sig. (2-tailed) | Mean Difference | 95% Confidence Interval of the Difference | | | | | | Lower | Upper | Distance from the center of the city | 25.624 | 80 | .000 | 14.593 | 13.46 | 15.73 | Interpretation: The difference for the distance of the home from the center of the city is 14.59 and 95% confidence interval is 13.46 to 15.73 b. Garage attached | | | Frequency | Percent | Valid Percent | Cumulative Percent
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Phoenix Recording's Research Report Kenneth Drake, Elizabeth Navarro, Olive Myers-Rose QNT/561 September 7, 2015 Heidi Carty, Ph. D. Phoenix Recording's Research Report Part 1: Formulating the Research Problem The Research Problem Phoenix Recording is a record label for various genres of music. The country music genre is fairly small and represents both male and female country artists. The Vice President noticed that the overall profits for the country artists are extremely low
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“Pizzazz.” Thirty (n=30) random selected Pizzazzes are driven for a month and the mileage is carefully measured in each. The mean mileage for the sample is 28.6 miles per gallon (mpg) and the sample standard deviation is 2.2 mpg. Estimate a 95% confidence interval for the mean mpg in the entire population of Pizzazzes (you might need to round your answer a little bit to agree with mine). (a) (b) (c) (d) (e) (23.42, 33.84) (27.81, 29.39) (26.82, 30.47) (27.23, 30.03) None of the above
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Min/Max: 53/222 Overnight Low OAT in F° This data set is distributed normally. Central Tendency: Mean = 66.3; Median = 65.3; Mode = 67.8 Dispersion: Standard Deviation = 7.9; IQR = 11.7; Range = 36.9 Number: n = 147 Min/Max: 48.9/85.8 Confidence Interval: Lower = 65.04; Upper = 67.62 OAT Strata OAT < 70; OAT ≥ 70 Descriptive Statistics Interpretation kWh 1st Hour Operational Day The 60 minutes from 7:00a – 7:59a combine to make the first hour of the operational day for this
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Executive Summary. The prices of 1-Day ACUVUE MOIST (1-DAM) contact lens in the territory of Russian Federation are analysed. The main objectives of the present analysis are: to compare the mean price of 1-DAM with the expert’s manufacturer statement; to investigate wheather there is a significant difference in mean prices of 1-DAM in different distribution channels; to investigate whether the mean prices of 1-DAM are significally different in various regions of Russia; Analytical
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Introduction: Statistics can be gathered and presented in a variety of different formats. In the situation requiring a group's opinions to be gathered, polls are an effective choice. Polls allow an individual or organisation to view the separated opinions within a group while maintaining anonymity. Within a poll, one or more predefined options are presented to the respondent, allowing them to select the answer that is most
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means the UK currency has a higher exchanging level than Australia in average level. In addition, we can analyze those data through the histograms. At the beginning, we divided the UK and Australia exchange rates into several groups and the group interval is 0.1. Ant then, we drew those histograms. Visually, we can
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1.4051 B) 1.7507 C) 1.4051 D) 1.7507| 2.|A report states that 38% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 5% with 90% confidence?| |A) 64 B) 128 C) 255 D) 510| 3.|If the equation for the regression line is y = –8x + 5, then the intercept of this line is| |A) 10 B) 5 C) –3 D) –8| 4.|For the samples summarized below, test the hypothesis at
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