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• Due on 12 Mar, 2016 05:04:00
• Asked On 12 Mar, 2016 04:12:38
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It is for both Statistics and Probability. the deadline is today so I need help.

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Statistics and Probability
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• Submitted On 12 Mar, 2016 04:33:56
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Week One Homework Assignment - Statistics and Probability A+ use as a guide
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• Submitted On 12 Mar, 2016 07:17:05
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For the purposes of this assignment, assume that: (1) the sample consisting of 25 students is truly representative of the population of 1,125 students from which it was drawn; and (2) the 1,125 students who have completed the course during the past ten years constitute a truly representative sample of all future students who will eventually enroll in the course. Based upon these assumptions, use the sample data provided in the preceding table to answer the following questions. 1. What is the predicted range for the mean grade for an average future student enrolling in the CHEM 103 course? o 27.65 o 22.37 o 19.87 o 34.68 Solution: Range = Maximum – Minimum Range = 96.93 – 74.56 Range = 22.37 2. What is the predicted mean grade for an average future student enrolling in the CHEM 103 course? o 76.31 o 83.26 o 87.26 o 90.89 Solution: Mean = ∑X/n Mean = 2181.58/25 Mean = 87.26 3. What is the predicted median grade for an average future student enrolling in the CHEM 103 course? o 86.76 o 91.94 o 79.16 o 90.91 Solution: Median = (n +1)/2th observation Median = (25 + 1)/2th observation Median = 13th observation Median = 86.76 4. What is the predicted standard error of the mean grade for an average future student enrolling in the CHEM 103 course? o 1.58 o 2.29 o 2.11 o 1.18 Solution: Standard deviation = √∑(X – mean)²/ (n – 1) Standard deviati...
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Statistics Homework
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• Submitted On 12 Mar, 2016 08:07:37
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Statistics Help
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• Submitted On 12 Mar, 2016 09:56:24
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