1. In addition to planning what, whom, when, and how to observe, what else do researchers plan before conducting their research?

Q: Please help   You are given the following data, where X1X1 (final percentage in history class) and…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 8. The following data set represents the number of hours a small candle will burn. 9, 6, 11, 16, 11,…

A: By using online calculator

Q: The question is which box plot has the greatest variability and which box plot has the least…

A: Basics of a boxplot:A boxplot is based on the 5-number summary: (Minimum, Q1, Median, Q3, Maximum);…

Q: Briefly describe the methods of collecting primary data

A: The objective of this question is to understand the various methods of collecting primary data in…

Q: The data are the colors of cars. You sample 6 cars. The colors of the cars are white, gray, purple,…

A: Qualitative data : Qualitative data can be grouped according to categories. It is also called…

Q: Identify the explanatory variable and the response variable. An agricultural business wants to…

A: Response variable The dependent variable are known as the response variable. Explanatory variable or…

Q: Briefly describe the importance of statistics in business

A: The objective of this question is to understand the significance of statistics in the field of…

Q: find coefficient of variation for given population data   20,25,28,27,26,32,35,34,24

A:

Q: What type of Data is being shown

A: Given the histogram which is a visual representation of the data given. We have to write which type…

Q: Part 2 of 4 Compute the P-value. Round the answer to four decimal places. P-value = %3D

A: Use Ti calculator to find the P-value as follows: Select STAT > Edit > Enter the values of…

Q: Illustrate the null hypothesis for a correlated t test?

A:

Q: Describe about Variability within Groups.

A: There are two types of variability in ANOVA. They are, Between groups variability. Within group…

Q: A food bank investigates if the number of times their donors walk by a homeless person each week…

A: The following information has been provided: Donor ZX ZY 1 -1.3 0.36 2 0.64…

Q: Identify each variable as continuous/quantitative or categorical

A: The variables Age, Length of hospital stay, and follow-up status for MI patients can be classified…

Q: How important is discrete mathematics for a Data analysis?

A: Answer given below.

Q: gives applicants represent simple random samples of men and women who apply for these jobs. Complete…

A: A confidence interval is a statistical concept used to estimate an interval within which a…

Q: how do I describe the "measures of center and variability" of a chart?

A: The commonly used measures of center tendency are, Mean Median Mode In charts like histogram, the…

Q: Explain if it is possible to obtain a negative value for SS (e.g. when calculating variability for…

A: For a random variable x with mean x̅, the sum of square is defined as SS =Σ(x – x̅)2.

Q: 3. A psychology professor wants to know if stress in his statistics class is in anyway affected by a…

A: Given Following notations can be assumed:   Psychology=A Other=B Male=1 17,-1,9,17,10,13,13,14…

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: The school cafeteria collects data on students’ juice box selections. What type of data are these?…

A: It is given that, The school students classified on the basis of juice box selections i.e. here we…

Q: A food bank investigates if the number of times their donors walk by a homeless person each week…

A: Given that: # of homeless people seen each week Donation to food bank Donor ZX ZY…

Q: Define the term Qualitative variable with example?

A: Qualitative variable:  The variables which are not numerical  are called as Qualitative variables.…

Q: What type if variable is color vision status categorical or quantitative

A: Given that  Qualitative variables or Categorical variables: The data which cannot be expressed as…

Q: The data sets represent the operating times in hours on a fully charged battery from a random sample…

A: a.   Range for full charged hours of ipad 4 is 2.14. Range for full charged hours of ipad 5 is 2.43.…

Q: How can graphics and/or statistics be used to misrepresent data?

A: Graphical representation or statistical data can be misleading or misrepresented. Some statistics…

Q: Based on the hourly incomes (in US dollars) of employees in two different branches at Citibank,…

A: Variability refers to the spread of the data . It allows us to compare two datasets.