find mean devaition of this data??

Q: Using the given result/data, create a discussion with backup related literature.

A: The given data is a Likert scale analysis which analysis the responses of the customers regarding…

Q: Give an example of a study that would collect univariate and quantitative data.

A: Give an example of a study that would collect univariate and quantitative data.

Q: Find the variance for this data set of salaries 30, 34, 52, 48, 25, 36, 27 Round the…

A: The mean of the sample data can be obtained as:

Q: What is the coefficient of determination for the data above?

A: Step-by-step procedure to find the regression line using Excel: In Excel sheet, enter x and y in…

Q: A researcher wants to know if there is a difference between the mean amount of sleep that people get…

A: 2. Excel Procedure: Enter the data for Part Time, Unemployed and Full Time in Excel sheet>…

Q: 3. How was the data collected?

A: Data collection is an important part because the whole analysis will depend upon the collected data.…

Q: Can you please expain why population is discrete data

A: Now population data can either be; Qualitative data Quantitative data

Q: Find the mean and variance of S2(attached)

A: Expectation of S2:The expectation of S2 is obtained as follows:

Q: How to interpret the result according to the above data?

A: Decision Rule: Reject H0 if p value less than or equal to α. Let us consider, α=0.05. From the given…

Q: Find the range and standard deviation of the set of data. 15, 18, 12, 9, 12, 10, 15

A:

Q: I. Consider the data set of the heights of all babies born in the Philippines during a particular…

A: Given that - The data set of the heights of all babies born in the Philippines during a particular…

Q: Solve for the range, variance, and standard deviation of this data: 40, 34, 50, 46, 47, 39.

A: Given data set 40,34,50,46,47,39

Q: What is the mean of the current data set? Show your work using the sketchpad below.

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

Q: how to find the variance?

A: Variance is a measure of variability. It is computed by the average of squared deviations from the…

Q: What is the mode of the data shown below?

A: Given : We have given data of stem and leaf    stem  Leaf 1 1,2 2 2,3,8 3 3,4,5 4 0,0,1…

Q: which data set has the highest variability?  3,3,4,4,4,2,3 1,1,1,1,1,2,2,7…

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

Q: Which of the sections had the most variance in the scores?

A: Given: Section Mean Standard deviation English 20.3 6.8 Math 20.7 5.4 Reading 21.4 6.5…

Q: Calculate the coefficient of variation for each data set. Which data set has less consistency (or…

A: The coefficient of variation is defined as CV = (SD/mean )×100

Q: state two diaadvantage of displaying data in groups

A: We have to write two disadvantages ofndisplayimg data im group

Q: What type of graphs are suitable for displaying the mean, median, variance and standard deviation

A: Graphical displays complement tabular presentations of descriptive statistics. Generally, graphs are…

Q: i. Sketch a scatter diagram of the data and interpret the correlation coefficient.

A: Scatter Diagram (i) insert →scatter plot

Q: What is the 5-number-summary of this data set? 0, 6, 6, 7, 11, 18, 18, 20, 22, 24, 33, 38

A: Given:      Data set =0,6,6,7,11,18,18,20,22,24,33,38 Compute the five number summary for the…

Q: what does variance measure?

A: Variance: Variance measures absolute variability in a data set, calculated with respect to the mean.…

Q: Can we say that there is a significant positive correlation among the data? (a = .05)

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Can we say that there is a significant negative correlation among the data? (a = .10)

A: To test that if there is a significant negative correlation among the data, first we have to…

Q: true about the type of data?

A: A team of researchers was requested to collect data on the household expenditure of two groups…

Q: What formula is used to gain information about an individual data value when the variable is…

A: Solution: 6. Let X be the random variable. From the given information, X is normally distributed.

Q: The first quartile of the data values 45, 48, 31, 48, 50, 30  equals ?

A: Arranging the data into ascending order: 30, 31, 45, 48, 48, 50

Q: Which piece of data is NOT categorical? O Your fastest running speed O Your favorite TV show O Your…

A: We have to find which piece of data is not caterogical.

Q: What is the variance of the following data( 1, 2, 3, 4, and 5)?

A: According to the given information in this question We need to calculate the value of variance

Q: Find the variance of these data

A: From the given given sample data : n=5 , ƩX=105 , ƩX2=2333  Our aim is to find the sample variance

Q: State the formula for Variance.

A: Equation that defines the population variance σ2=∑(X-μ)2N Here, σ2 is variance, (X-μ) is distances…

Q: Let's use the data from the previous question. Make sure to document, the mean, Variance and SD.

A: Solution-: We find mean, variance and standard deviation of given score of students.

Q: Which of the following is not a criterion for evaluating secondary data? *

A: Data is secondary when we don't collect it ourselves and work on a data collected by someone else.

Q: What is the variance of the data set 14,23,9,12,18,8

A: Given Data :  XX 14 23 9 12 18 8 Below table will be used to calculate variance :…

Q: Are graphs effective substitutes for the statistical treatment of data?

A: Contributions to statistical graphics, including effective use of graphs and charts to communicate…

Q: Provide a reason why the classication of data is important.

A: In this case, we need to find the reason for the importance of data classification.

Q: ) what is the first quartile? B) % of the data between 30 and 36

A: See the handwritten solution

Q: The inter quartile range (IQR) of the data: 2, 4, 4, 5, 6, 7, 8 is equal to 2. 3. 6.

A: According to the given information, we haveData set: 2, 4, 4, 5, 6, 7, 8

Q: What is the Fratio for these data?

A:

Q: What type of data would you use for collecting data on lap swim time

A: Continuous Data represents measurements and therefore their values can’t be counted but they can be…

Q: The fuel efficiency, in miles per gallon, of 10 small utility trucks was measured. The results are…

A: Given the values 22, 25, 23, 27, 15, 24, 24, 32, 23, 22, 25, 22. We need to find the variance of…

Q: The scatter plot is used to examine the relationships between different functions in the statistical…

A: Solution: Scatter plot: Scatter plot is a graphical technique or method of identifying the linear…

Q: What is the difference between Discrete and Continous Data and prodivde an example for each.

A: Discrete random variable : Random variables that can assume only a countable number of values are…

Q: So far, Walter has scores of 18, 17, 19, and 21 points for the first four science quizzes. What does…

A: Walter scores of first four science quizzes is 18, 17, 19 and 21 points.

Q: Calculate the coefficient of determination for the data, and interpret the value in context.

A: Given Information: The table shows the annual income, in dollars and amount spent on vacation, in…

Q: ) In APA format, write out the results of your statistical test:

A: Given information: The MINITAB output for one sample t test is given.

Q: The following table summarizes the grade point averages (GPAs) of graduate students in a statistics…

A: Given data, Class Frequency (fi) Midpoint (Mi) Mi *fi 3-3.2 5 3.1 3.1*5=15.5 3.2-3.4 9 3.3…

Q: Compose the score values for 3 samples that have the same mean and median, but differ in the amount…

A: Part 1   2, 4, 6 3, 4, 5 4, 4, 4     Explanation: Part 1   There are many different conceivable…

Inverse Normal Distribution

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.