Calculate the mean, median, sample variance, Applied Statistics

Question:

The weights of 60 children born to mothers in a small rural hospital were recorded.

3.63

3.54

3.15

3.90

4.29

4.06

2.91

3.36

3.38

2.22

3.79

3.57

3.44

2.58

4.23

4.76

3.09

3.65

3.23

3.97

3.46

2.70

3.12

3.82

3.75

3.54

3.34

3.00

4.44

1.91

2.82

3.52

3.27

3.04

4.36

3.70

3.74

3.19

2.36

4.26

3.36

3.42

4.14

4.02

3.89

3.60

3.46

4.50

4.09

3.50

4.17

3.52

3.93

3.41

3.49

2.64

5.02

2.52

3.85

3.54

a) Calculate the mean, median, sample variance, and standard deviation of these results.

b) Calculate the 95% confidence intervals for this data set. Explain what these results are telling us in your own words. (Analyze - one sample t-test 95%)

c) What does a standard deviation tell you?

d) Suppose it is believed that the average weight for these children is 3 kg. At the 5% level of significance test whether the true weight for this group is 3 kg against the alternative hypothesis that the average weight is greater than 3 kg. You may assume that the data are normally distributed.

e) Draw a P-P plot for this data set. Would you consider this data to be normally distributed? Please justify your answer. (descriptive P-P plot)

Posted Date: 2/16/2013 1:48:34 AM | Location : United States







Related Discussions:- Calculate the mean, median, sample variance, Assignment Help, Ask Question on Calculate the mean, median, sample variance, Get Answer, Expert's Help, Calculate the mean, median, sample variance Discussions

Write discussion on Calculate the mean, median, sample variance
Your posts are moderated
Related Questions
a) List down several measures of central tendency and define the difference among them? b) What do you mean by confidence interval, and why it is useful? What is a confidence lev

The box plot displays the diversity of data for the age; the data ranges from 19 being the minimum value and 60 being the maximum value. The box plot is positively skewed at 0.57 a


introduction of median

Now, let's look at a different linear combination. Suppose we are interested n comparing the average mean log income for no college education ( 16). 1. Write out the linear com

As we stated above, we start factor analysis with principal component analysis, but we quickly diverge as we apply the a priori knowledge we brought to the problem. This knowled

The Harmonic Mean is based on the reciprocals of numbers averaged. It is defined as the reciprocal of the arithmetic mean of the reciprocal of the given individual observations. Th

The regression line should be drawn on the scatter diagram in such a way that when the squared values of the vertical distance from each plotted point to the line are added, the to

HOW WOULD YOU INTERPRET THIS PROBABILITY:P(a)=1.05

Investigate the use of fixed and percentile meshes when applying chi squared goodness-of- t hypothesis tests. Apply the oversmoothing procedure to the LRL data. Compare the res