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) Elevation (m) 0 400 800 1200 1600 2000 2400 2800 3200 4000 480

Binomial Distribution Binomial distribution  was discovered by swiss mathematician James  Bernonulli, so this distribution is called as Bernoulli distribution also, this is a d

There exists an unclassified data set with hidden data structures in it. The task in this assignment is to perform comprehensive Cluster Analysis in order to reveal the structures

Arithmetic Mean   The process of computing Arithmetic Mean in the case of individual observations is to take the sum of the values of the variable and then divide by the number

Celia is a nurse in a geriatric ward.  She noticed that older persons in her care are having problems sleeping at night.  She decided to introduce non-pharmocologic ways of relaxat

The data le for this assignment is brain-body-wts.txt, which lists the averages brain weights (gm) and body weights (kg) for a number of animal species. Your task is to t an appr

Construct your initial multivariate model by selecting a dependent variable Y and two independent variables X. Clearly define what each variable represents and how this relates t

The file Midterm Data.xls has a tab labeled "Income Data 2009". This data is collected income data from a sample of 400 people in 2009. Use a hypothesis test to see whether the av

Q. 1 a) Describe the important quantitative techniques used in public system management. (10) b) Do you think the day will come when all decisions are made with the assistance of

a) What is meant by secular trend? Discuss any two methods of isolating trend values in a time series.