1. Following the explosion of the 25th space shuttle flight‚ which was caused by an O-ring failure in one or more of the booster rockets‚ data from the previous 24 flights were studied. The Temperature (F) at the time of launch and whether or not there was evidence of O-ring failures for each of the previous 24 shuttle flights was determined for each flight. A logistic regression relating the Failure of O-rings to the Temperature was obtained with the following result: Estimate Std. Error z value Intercept
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personal income‚ the PCE increase by 0.0953 billion dollars (c) Comment on the significance of model (α = 0.05) Hypotheses: H0: β1 =0 H1 : β1 ≠ 0 Decision rule: reject H0‚ if |tcalc|> |t(α/2‚ n-k-1)| Where tcrit = t (0.025‚ 98) =1.9845 Test statistic: t = = = 48.368 Decision: Reject H0 because t calc > t crit Conclusion: There is sufficient evidence to conclude that there is significant relationship between disposable personal income and PCE at 5% level of significance
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Due to financial hardship‚ the Nyke shoe company feels they only need to make one size of shoes‚ regardless of gender or height. They have collected data on gender‚ shoe size‚ and height and have asked you to tell them if they can change their business model to include only one size of shoes – regardless of height or gender of the wearer. In no more 5-10 pages (including figures)‚ explain your recommendations‚ using statistical evidence to support your findings. The data found are below: Shoe
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1. Use the data given to calculate annual returns for Goodman‚ Landry‚ and the Market Index‚ and then calculate average annual returns for the two stocks and the index. (Hint: Remember‚ returns are calculated by subtracting the beginning price from the ending price to get the capital gain or loss‚ adding the dividend to the capital gain or loss‚ and then dividing the result by the beginning price. Assume that dividends are already included in the index. Also‚ you cannot calculate the rate of return
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studying for my mid-term.. • [Lucinda] oh • [Lexi] but no one;s home so :P • [Sademousy] im suppose to do hw and? Thanks to Eliisproooo‚ we gathered 3 cheese! Moyano is now your shaman‚ follow her! • [Lucinda] i’m supposed to be studying for my spanish test • [Sademousy] cx • Cocoa has left. • [Lexi] lawl xP • [Lexi] i saw ricardo say your name jane o3o [Sademousy] im suppose to be doing hw for tommorow but guess what im playing Lucinda is first :) • [Janae] your in room 2 arent you... [Lucinda]
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Elementary Concepts in Statistics Overview of Elementary Concepts in Statistics. In this introduction‚ we will briefly discuss those elementary statistical concepts that provide the necessary foundations for more specialized expertise in any area of statistical data analysis. The selected topics illustrate the basic assumptions of most statistical methods and/or have been demonstrated in research to be necessary components of one’s general understanding of the "quantitative nature" of reality
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CENTRAL STATISTICS OFFICE NATIONAL STATISTICAL ORGANISATION MINISTRY OF STATISTICS AND PROGRAMME IMPLEMENTATION GOVERNMENT OF INDIA www.mospi.gov.in CSO‚ SARDAR PATEL BHAVAN‚ SANSAD MARG‚ NEW DELHI - 110 001 Energy Statistics 2013 ENERGY STATISTICS 2013 (Twentieth Issue) CENTRAL STATISTICS OFFICE MINISTRY OF STATISTICS AND PROGRAMME IMPLEMENTATION GOVERNMENT OF INDIA NEW DELHI CENTRAL STATISTICS OFFICE CENTRAL STATISTICS OFFICE Energy Statistics 2013 FOREWORD Energy
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MM207 Statistics Unit IV Mid Term Project 1. In the following situation identify the implied population. A recent report on the weekly news presented the findings of a study on the effectiveness of Onglyza‚ along with diet and exercise‚ for treating diabetes. According to Bennett (2009)‚ a population is defined as “the complete set of people or things being studied” in a statistical study. Given that the information is in relation to finding the success of a drug used to care for
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Lecture Notes: Statistics A note on basic statistics Statistics is the practice or science of collecting and analyzing numerical data in large quantities. So there are two parts1. Collection of Data 2. Analysis of Data- understanding what the data says. Steps in Statistics To carry out any statistical operation‚ the following steps need to be followed‚ in the given order: 1. 2. 3. 4. 5. 6. Sampling Estimation Hypothesis Generation Testing Regression Prediction Collection of Data: Sampling
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withdrawing to me always means the entrant gains nothing. This question however states that the entrance will suffer a loss of 1 in the incumbent will have a gain of 8. However‚ I see this question two-fold fold because if the entrant does not have the ability to withdraw then possibly they have eliminated any gains‚ and this question does state that the entrant will either lose 1 in the first scenario or lose 5 in the second. In my opinion the entrant needs to refrain from withdrawing.
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