Researchers want to know which food chain makes people the happiest. Researchers randomly assign participants to eat at either Chipotle, Qdoba, or California Tortilla for lunch every day for one week. At the end of the week, researchers measured the participants' happiness levels. Chipotle Qdoba California Tortilla 93 78 82 82 77 88 82 60 80 82 60 65 89 83 74 What is the mean squares within (s^2 w)? Please compute to 4 decimal places.

Q: Develop the ability to picture the distribution of data in the format of a histogram or relative…

A: This question focuses on developing the ability to visualize the distribution of data in the form 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: 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: XYZ Corporation recorded the number of employee absences each week over a period of 10 weeks. The…

A: Given XYZ Corporation recorded the number of employee absences each week over a period of 10 weeks.…

Q: Battery life is an important issue for many smartphone owners. Public health studies have examined…

A: From the provided information, The data values are as follow: Primary use: Talking 35.8 22.2 24.0…

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: When data is normally distributed the mean equals the median True False

A: Normal distribution

Q: Human resource managers face the business problem of assessing the impact of factors on full-time…

A: Let us define total worldwide revenues as X1, FT voluntary Turnover and Total FT job openings as Y.…

Q: This is an EXERCISE. How can we measure the impact of education level on income inequality by using…

A: Yes, the Chi Square test of Independence can be used to test dependency between education level and…

Q: A negative z-score indicates that the score or value is above the mean. True or False

A: Given: z-score

Q: a. Formulate hypotheses about the two population variances that can be used to determine whether the…

A: a) Null and Alternative Hypotheses The following null and alternative hypotheses need to be tested:…

Q: The median of the data 82, 139, 79, 148, 102, 128, 112, 92 is_ O 102 107.00 O 214.00 O 158.00 O 112

A: Given  The data are 82, 139, 79, 148, 102, 128, 112, 92 N=8

Q: What is the role of displays in statistics?

A: There are mainly two types of displays in statistics, such as, graphical representation and table or…

Q: How is statistics used in information systems?

A: statistics is used for data mining ,speech recognition ,vision and image analysis ,data compression…

Q: How can data be compared?

A: Here, we have to describe the different ways by which data can be compared.

Q: Explain when can we use data grouping?

A: when the data is large, then the data grouping is used. The general way of handling continuous…

Q: What are the limitations of the mean

A: A.M is a ratio of sum of observations to the number of observations.

Q: The number of books read buy student students in a week is an example of qualitative and discrete…

A: Qualitative variable consists of categories.

Q: The third quartile of the data: 22,17,10,35,40,18,9 is equal to

A: we know that  It is the median of uppar values of data. Uppar values mean the data values which are…

Q: Perform a multiple regression analysis on these data. Interpret the coefficient estimates and their…

A: Linear regression is the relationship between a scalar response variable and one or more explanatory…

Q: Describe the procedure for defining a variable and rules for data codingin SPSS.

A: The procedure for defining a variable in SPSS are as follows: 1) The first step is to click on the…

Q: What are various ways to collect data?

A: The raw data collected from the multiple sources for the first time is called primary data. The data…

Q: Using excel the median is 16.70 but when I calculate it manually it comes to 13.9. Why is excel…

A:

Q: What are the best measures used used for data variation or dispersion

A: Measures of variability: The measure of variability or the measures of dispersion can be measured…

Q: What's the Z score and how is it calculated?

A: We know z-score is used in many fields. But we should know what is the meaning of z-score and how to…

Q: Student's t-test is used to test the differences of three or more independent variables

A: Statement :  Student's t-test is used to test the differences of three or more independent variables…

Q: hy is the median the best representation

A: The mean,,,median,, 99, 254); position: relative; display: inline-block;">mean, median, and mode…

Q: e using scatterplot. How to distinguish betwee

A: Let us consider a multivariate dataset to visualize to distinguish between the attributes: This open…

Q: Explain Multivariate Relationships among Items?

A: Multivariate regression attempts to determine a formula that can describe how elements in a vector…

Q: Draw a scatter diagram for the data. Plot the least-squares line on your scatter diagram.

A: Given: Let x be the age of a bighorn sheep (in years), and let y be the mortality rate (percent that…

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

A:

Q: Describe how to Convert to Transform Standard Scores?

A:

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

A: Yes, it is possible to have a datasets with same mean, median and mode. Consider the dataset: 4, 5,…

Q: In a study, researchers wanted to measure the effect of alcohol on the hippocampal region, the…

A: Given,   Sample size = 12 Sample mean = 8.17 Sample standard deviation = 0.8 Population mean = 9.02…

Q: What does it mean when a constant is added to every data value in a data set ?

A: when a constant is added to every data value in a data set, there will be a change in the…

Q: Give 2 examples of Mean in Measure of central tendency to grouped data

A: Solution-: Give 2 examples of Mean in Measure of central tendency to grouped data

Q: How do I create a symmetrical data table? Like how do I know if it’s symmetrical?

A: If the data are symmetric, they have about the same shape on either side of the middle. In other…