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This question has two parts with multiple items to answer.
You are a psychologist who has collected the subjective well-being scores of a number of elderly people aged 90 or above who are residents of an independent living facility or who are still living independently in their homes.
A. For each group calculate the values listed below:
a. Mean
b. Median
c. Mode
d. Range
e. Variance (for describing the data)
f. Standard deviation (for describing the data)
g. The unbiased estimate of the variance
h. The unbiased estimate of the standard deviation
Measurement of trend , least square method
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To compare three brands of computer keyboards, four data entry specialists were randomly selected. Each specialist used all three keyboards to enter the same kind of text material
Motion Picture Industry (95 Points) The motion picture industry is a competitive business. More than 50 studios produce a total of 300 to 400 new motion pictures each year, and t
If the data set contains an odd number of items, the middle item of the array is the median. If there is an even number of items, the median is the average of the two items. If the
"index number is an economic barometer" comment on this statement
Circles or Pie Diagram: Circles or pie diagrams are alternative to squares. These are used for the same purpose i.e. when the values are differing widely in their magnitude
In 120 tosses of a coin, 45 heads and 75 tails are observed. Is this a balanced coin? Use a=0.05. (Follow the basic steps of hypothesis testing)
1. Use the concepts of sampling error and z-scores to explain the concept of distribution of sample means. 2. Describe the distribution of sample means shape for samples of n=36
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