It is extremely important for a researcher to clearly define the varibales in a study because this helps to determine the type of analysis that can be performed on the data. For example, if a researcher wanted to describe people based on Social Security number, what level of measurement would the variable "Social Security number" be? Now suppose the researcher felt that certain people who lived farther ease received higher numbers. Does the level of measurement of the variable change? If so how? What is the level of measurement of the variable "Social Security number"in the origiinal scenario?

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A: The objective of the question is to determine the degrees of freedom in a correlation analysis…

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A: An explanatory variable is the one which can be changed independently or what you manipulate or…

Q: What is the independent variable and dependent variable in this question

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A: The confidence interval inversely depends on the sample size. The formula for the confidence…

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

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Q: How can I create a histogram when the only data I have is the percentage of 16 year olds who used…

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Q: An business reviews data on the daily amount of calls it receives. Are the data discrete or…

A: Discrete Variable: A variable which assumes only specified values within a given range is a discrete…

Q: As with the Part I Activity, determine which “average” would be a better fit for the data given.…

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Q: Chi Square tests are used to analyze qualitative data such as opinions, observations or surveys and…

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Q: what is nominal (categorial) data?

A: Categorical data: The type of data that naturally take non-numerical values, such as words that can…

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: In a study, you ask the subjects their age in years. Is this data qualitative or quantitative?

A: Qualitative data:Qualitative variable categories each individual to corresponding groups. It is used…

Q: Suppose a data set is strongly skewed to the left. Which statement is true? The mean will be larger…

A: It is given that the data set is strongly skewed to the left.

Q: The data used for this assignment was extracted from a NBC News website story that appeared on…

A: 127 1050 130 1050 101 700 88 670 83 640 87 640 89 560

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Q: The variable personal desire for aggressive treatment is?

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Q: can a cause and effect relationship be determined?

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Q: The data collected without any objective is called numbers True or false

A: The data collected without any objective is called numbers.

Q: please do with rstudio and provide all the codes.

A: The objective of the question is to analyze the relationship between the age of the shopper and the…

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Q: When describing a data set, the mean is used with and the median is sed with Z-scores are used to…

A: When describing a data set, the mean is used with average and the median is used with middle value.

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Q: If a data set is small , like one that has only six values . Why bother to contrast a histogra

A: From the above given data the following solution is provided below:

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A: given that  mean of a data set is 22

Q: A study was undertaken to see how accurate food labeling for calories on food that is considered…

A: Given:

Q: A study was undertaken to see how accurate food labeling for calories on food that is considered…

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A:

Q: Of the variables you have studied so far, which type yields nonnumerical data?

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

Q: The null hypothesis for this test is:

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Q: If the data points do not lie in a straight line, there is no relationship between the variables…

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