which is more meaningful in ranking academic performance quartiles or deciles

Q: Describe the main measures of central tendency and dispersion. Why are they important in analyzing…

A: A measure of central tendency helps to identify the location of a dataset, whereas a measure of…

Q: what is the positive and negative impact of raw data?

A: By positive impact of raw data we mean the advantages of using raw data whereas the negatives…

Q: Calculate t for a comparison for repeated-measures data?

A: The computational procedure is to compute the difference between each pair of observations (di)…

Q: E. What is the interquartile range for employee scores?

A: The interquartile range is from first quartile to third quartile.

Q: Which value is greater than at most 75% of all scores in a data set?

A: The median is middle value of the observations, above or below which 50% of the observations lie.

Q: What does a z-score tell you about a data value?

A: Solution: Let X be the random variable. The z-score is the standardized value of the given data.

Q: The "fishing" approach to data analysis refers to what?

A: " fishing" is a data mining  practice in which large volumes of data are analyzed seeking any…

Q: What caution is must for finding the median for ordered qualitative data?

A:

Q: Explain why the minimum and maximum observations are added to the three quartiles to describe better…

A: Quartile: Quartiles are the values which divides the data into four equal parts. First quartile:…

Q: What is the best estimate of the mean household income in this county?

A:

Q: What is the IQR for the data set?

A: Measure of central tendency measures the central or average value of a dataset. Measured of…

Q: What is the significance of the upper and lower line in the nomogram

A: The nomogram is also known as Rumack-Matthew nomogram.

Q: Explain four different levels of data measurement with an example for each

A: The four fundamental levels of measurement scales used to capture data in the form of surveys and…

Q: Give definition of Cross-Sectional Data?

A: Cross-sectional data is a type of data that is gathered by analyzing the various subjects like…

Q: Describe the process you would use to estimate Propensity Scores

A:

Q: What is Percentile Rank of an Observation?

A: Percentiles: If the elements in the data set are arranged in ascending order of magnitude, then the…

Q: You can calculate an average/mean of qualitative data. True or False

A: mean , median and measure of spread  can't be calculated for qualitative data, because no natural…

Q: Why do you think that the mean is the most sensitive measure of central tendency?

A: We know that, mean is the ratio of sum of all observation and number of observation. Let, xi be the…

Q: Differentiate the three kinds of quantile; quartiles, decile, and percentile.

A: Quantiles determine that part of the data set which falls under and above a particular limit.

Q: Why is the median less affected by skewed data than the mean?

A: Mean: The average values of the total observations. Median: The value that divided data set into two…

Q: what does the shape of the box imply about the concentration of data? use complete sentences

A: In statistics, the box plots are graphical technique that tells us about the concentration of the…

Q: Does this table data include mean, median, or mode? What kind of level of measure is used?

A: The data consists the monthly cost of groceries for college students of 51 states.

Q: Determine whether the variables is qualitative or quantitative number of infants born in a month

A: Let QlV denote qualitative variable. Let QnV denote quantitative variable.

Q: Based on the results of data analysis, which group performed better in the achievement test? Why?

A: Measures of central tendency: Mean: It is the overall average of the group. Median: It is the values…

Q: compared to the median, the mean number of hours that participants watch television is ___.  -lower…

A: The given Statistic is :

Q: How will a high outlier in a data set affect the mean and median?

A: There is the effect of an outlier on the median value.

Q: What is difference between the Differences between Mean and Median?

A: The measures of centre or measures of central tendency are those descriptive measures that give the…

Q: The mean of the data set represented by the histogram is 12. What is a reasonable estimate for the​…

A: We have to find estimate for median...

Q: Briefly explain what is meant when a researcher reports “a significant mean difference between two…

A: Introduction: When a researcher wishes to test for the mean difference between two treatment…

Q: In comparing data sets, which of the following is to be used?   mode   range   coefficient of…

A: To find: The measures which can be used to compare the data sets.

Q: What is the 75th Percentile of a data set when the Inter Quartile Range (IQR) is 12.5 and the first…

A:

Q: Can you find a set of data such the mean, median, and variance are all equal to each other?

A: A normal distribution is a common probability distribution . It has a shape often referred to as a…

Q: Why is the combination of the measures of central tendency and measures of variation so informative…

A: Measures of central tendency gives the middle or central value which represents the whole data in a…

Q: Deifne different types of Quantitative data ?

A:

Q: Explain TWO strengths in using mean as a measure of central tendency.

A: Data with regard to a single variable is called univariate data. Generally, frequency distributions…

Q: What Is Control Charts for Attributes?

A: We know that, Control Charts for Attributes:  The p (proportion nonconforming) control chart and u…

Q: What well-being score represents the 45 percentile? *

A: It is given that the mean is 100 and the standard deviation is 20.

Q: What is difference between mean, median and mode?

A: Mean: The arithmetic mean (also called the mean) is the most commonly used measure of central…

Q: How to find the relative and percent error in this data?

A: From the given data the equation is of linear type in the form of a line equation Y = a+bX The line…

Q: What is the highest relative score earned on a test?

A:

Q: Do the concepts of class limits, marks, cutpoints, and midpoints make sense for qualitative data?…

A: Qualitative variable: A variable that is used for classification of individuals based on some…

Q: B. Would the Floor Area be a significant predictor of Assessed Value?

A: Let x be the floor area, and y be the assessed value.

Q: Why Mode value is one of the given set of data values?

A: Mode: Occasionally, when describing a set of data, the mode is used as a measure of central…

Q: How can I describe and differentiate the properties of the decile, quartile, and percentile?

A: Decile, quartile and percentiles are the partition values.

Q: Can mean be used with qualitative data?

A: Given a statement that mean can be used with qualitative data.   Definition : Qualitative data:  It…

Q: Can you Describe the role of primary data and secondary data in the classification of data with…

A: Primary Data-The data which will be collected for the first time by the research development people…

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.