What and how do you run an Anova?
Levels of data, measures of central tendancy, dispersion. and distribution are noted.
What are levels of data and central tendancy? How is the standard deviation and semi-interquartile range calculated?
Find Standard Deviation using the computational formula
"My Bank" opens a branchin a commercial district. The bank wants to find out the waiting time of their customers during the Friday evening hours from 5pm to 8pm. Accordingly, the waiting time is recorded for all customers during these hours over a month. A random sample of 20 customers is selected; the waiting time, in minutes, ...continues
Construct a Frequency Distribution with a class interval of 10, starting with 30.
The caffeine content of 20 brands of regular coffe is shown below. 80 82 89 85 87 30 33 44 40 46 50 55 60 62 71 90 92 75 63 65 Construct a Frequency Distribution with a class interval of 10, starting with 30. Show the class limits, class boundaries, class midpoints, class frequencies and class cumulative les ...continues
Explanation of the four scales of measurements e.g., nominal, ordinal, interval and ratio
In determining the value of a variable, four scales of measurements are used. Describe these scales of measurements and provide examples.
Comparing the mean and median for different types of distributions of data
Describe how the mean compares to the median for a distribution as follows: a. skewed to the left, b. skewed to the right, c. symmetric
Median, Mode, Range, Variance and Standard Deviation are determined.
9.50 5.00 8.02 6.00 3.40 8.33 8.35 10.49 5.32 4.08 9.20 5.40 6.17 3.00 2.32 8.35 8.02 6.00 5.15 9.00 Using this data (in ungrouped form) compute; Median, Mode, Range, Variance and Standard Deviation (using computational formula).
Construct a Frequency Distribution with a class interval of 10, starting with 30.
The caffeine content of 20 brands of regular coffee is shown below. 80 82 89 85 87 30 33 44 40 46 50 55 60 62 71 90 92 75 63 65. Thus, this job helps to construct a Frequency Distribution with a class interval of 10, starting with 30. It shows the class limits, class boundaries, class midpoints, class frequencies and class cumul ...continues
Help with interpreting the results is given.
Shortly after their graduation, John and Mary bought two used vehicles. To satisfy their curiousity, they started to record their kilometrage each time they filled their gas tanks. After ten weeks, their records show the following numbers of kilometres per litre. Mary: 17, 19, 16, 15, 18, 18, 20, 22, 15, 15 Mean= 17.5 Stan ...continues
Mean, Median, and Mode are computed.
The following data show the age distribution of the top 14 doctors in the emergency faculty of a local hospital. Age Frequency 35-39 2 40-44 2 45-49 1 50-54 3 55-59 4 60-64 2 Compute the Mean, Median and Mode.
