Statistics Homework

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Please return by the deadline indicated on our schedule of due dates.A psychologist, Dr. Bill Mikalek, administered a test of manual dexterity to 30 third-graders. The times, in minutes, required to complete the test are given below. Construct a frequency distribution (including class limits, class boundaries, class midpoints, tally, frequency, and cumulative frequency) for the data using five classes. (14 points
3, 3, 2, 2, 2, 2 )4 10 10 1 12 2 9 9 9 107 12 9 7 11 3 10 7 5 70 1 2 3 12 5 6 7 8 9 A questionnaire on Marital Status showed the following information obtained from 20 respondents. Document Preview: Please return by the deadline indicated on our schedule of due dates.A psychologist, Dr. Bill Mikalek, administered a test of manual dexterity to 30 third-graders. The times, in minutes, required to complete the test are given below. Construct a frequency distribution (including class limits, class boundaries, class midpoints, tally, frequency, and cumulative frequency) for the data using five classes. (14 points
3, 3, 2, 2, 2, 2 )4 10 10 1 12 2 9 9 9 107 12 9 7 11 3 10 7 5 70 1 2 3 12 5 6 7 8 9 A questionnaire on Marital Status showed the following information obtained from 20 respondents. Construct a frequency distribution (including class, frequency, and percent.) (5 points)S D D M D S L S M S L M L S M S D L M S 3. Construct a histogram for the following frequency distribution: Class Bounds Frequency (5 points) 1 – 4 2 5 - 8 7 9 - 12 5 13 - 16 10 17 - 20 3 Construct a pie graph for blood types using the following information:(5 points) 5. What is the median and mode of the following sample data set? (10 points)48, 42, 43, 50, 51, 60, 40, 60Find the mean, and the median and modal classes of the following frequency distribution of 50 data items. (6 points)Class Frequency1014131003What is the mean of the following sample data set? (5 points)3, 8, 7, 1, 4, 10, 2, 15, 20, 21Find the range and variance of the following sample data set: (8 points
2, 6)10, 16, 3, 17, 6, 2, 23, 40A study was conducted, of 100 households, to determine the number of cell phones each household owns which found that houses had 0, 1, 2, 3, or 4 phones with probabilities of 0.2, 0.1, 0.4, 0.2, and 0.1, respectively. . Construct a probability distribution and draw a graph: (6 points)Find the mean and variance for the probability distribution: (10 points)# of units 1 2 3 4Probability 0.1 0.1 0.6 0.2If 32% of the people who take a certain drug have a negative reaction, find these binomial probabilities for a sample of 75 people:... Attachments: B219M167E1-B-....doc Jun 08 2012 01:28 AM

 

Solution ID:608794 | This paper was updated on 26-Nov-2015

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