Chapter 11 Questions to be graded: 5. Were the experimental and control groups similar in their type of feeding? Provide a rationale for your answer. Answer: Yes the experimental and control groups are similar in their feeding type because 40.6% in the experimental group decided to breast-feed‚ and 41.7% in the control group decided to breast-feed‚ that’s only 1.1% difference. 53.1% of the experimental group bottle-fed while 50.0% of the control group bottle-fed‚ a small 3.1% difference. Finally
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Analysis 1. All Sales | Inside | | Outside | | | | | | | | Mean | 64925 | Mean | 59289 | Mean | 70562 | Standard Error | 989 | Standard Error | 1115 | Standard Error | 1276 | Median | 61490 | Median | 56407 | Median | 69000 | Mode | 53464 | Mode | 53464 | Mode | #N/A | Standard Deviation | 10839 | Standard Deviation | 8639 | Standard Deviation | 9884 | Sample Variance | 117476832 | Sample Variance | 74634297 | Sample Variance | 97692326 | Kurtosis | -1 | Kurtosis |
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where the standard deviation is 1.0 make the data involved in the transformation normal Instructor Explanation: Found in section 3.2‚ The Standard Normal Distribution. Points Received: 0 of 1 Comments: Question 3. Question : In a distribution for which the mean is 25 and the standard deviation is 5‚ what percentage of all scores occur at 30 or below? Student Answer: 15.87% 20% 34.13% 84.13% Instructor Explanation: Found in section 3.2‚ The Standard Normal Distribution
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for Bartman and then copy the cell for the other items. b. Calculate the standard deviation of the returns for Bartman‚ Reynolds‚ and the Market Index. (Hint: Use the sample standard deviation formula given in the chapter‚ which corresponds to the STDEV function in Excel.) Use the function wizard to calculate the standard deviations. Bartman Reynolds Index Standard deviation of returns 28.3% 9.7% 13.8%
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TOPIC: Examining the capacity of human lungs. RESEARCH QUESTION: In what ways do gender‚ height‚ weight and practicing sports influence the capacity of human lungs? INTRODUCTION: Breathing is the process of respiration‚ during which air is inhaled into the lungs through the mouth or nose due to muscle contraction‚ and then exhaled due to muscle relaxation. It provides
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included into each of these rings every 2 meters along the trajectory is calculated‚ as well as the standard deviation. These particular elevation means and standard deviations are calculated for all the rings on every road. The values of average elevation and standard deviation refer to points which are located definitely on the roads‚ and can be used in order to determine the mean and standard deviation parameters of the Gaussian curve for each ring. The fuzzy logic Gaussian membership function is
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using the mean would make it appear that the “average” person makes more money than is actually the case. True or false: The standard deviation and the range are sensitive to outliers. Explain your response. (1 point) True-the standard deviation is sensitive because variability exists in a set of scores that deviate from the mean. True or false: The standard deviation can never be 0. Explain your response. (1 point) False-if the SD can be zero then the variance can also be zero. If variance
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can see that domestic and foreign equity yields the same real return‚ with a slightly higher standard deviation for the latter one. This would imply that they would be better off investing solely on domestic equities. However‚ under the 2.a assumptions‚ since they have a 0.6 correlation‚ foreign equities will be part of the optimal portfolio. 3 – By using the estimates of expected returns‚ standard deviations and covariances among the asset classes‚ I will create N weights for each asset summing up
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3263 accept Null Hypothesis Alternatively: If p value < significance level ‚ 0.01 reject Null Hypothesis If p value > significance level ‚ 0.01 accept Null Hypothesis Hypothesized Mean=M = 10 pages Standard deviation =s= 4.45 pages sample size=n= 35 sx=standard error of mean=s/square root of n= 0.7522 = ( 4.45 /square root of 35) sample mean= 14.44 pages z=(sample mean-M )/sx= 5.9027 =(14.44-10)/0.7522 Reject Null Hypothesis since z> z critical The mean is greater
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Bibliography: 9. Anonymous. (2009). Standard Deviation. http://standard-deviation.appspot.com/ 10 11. Anonymous. (last modified 2013). 68-95-99.7 rule. http://en.wikipedia.org/wiki/68-95-99.7_rule 12
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