Define the following terms:  Unbiasedness Efficiency of  an estimator Consistency of estimator

Q: Name different properties of estimators.

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Q: Identify the parameter, Part II. For each of the following situations, state whether the parameter…

A: Introduction A parameter is a no. which describes a whole pop.

Q: The name of your cat is an example of nominal data. True False

A: There are four types of scale(or level) for measurement, i.e.,  Ratio scale: data is continuous…

Q: A study took a sample to investigate how video on demand and other subscription-based services…

A: The set or collection of all possible observations is defined as the population. The proper subset…

Q: Calculate the best (most complex/sophisticated/stable) measure of central tendency allowed for the…

A: Given,the data is - 3, 9, 9, 4, 2, 7, 1.and the variable is the favorite month.The numbers indicate…

Q: If an estimator is unbiased, then: the mean of the estimator is equal to the true value the mean of…

A: Solution: Unbiased estimator :  An estimator T is said to be unbiased estimator of a  unknown…

Q: firm's sales and three economic indexes. The results were as follows:   Index Coefficient of…

A: Correlation measures degree of linear relationship between two variables.

Q: A researcher takes a sample of 150 employees of a company, the average age of company’s employees is…

A: Solution

Q: The following model predicts credit card acceptance (yes) as follows: p-value (0.001) Intercept…

A: Answer:- Given data table   Coefficient  p-value  Intercept  1.05 (<0.001) Bedreports…

Q: 1. In a study of Filipino Airlines flights from Japan to the Philippines, 68 flights are randomly…

A: Given some statements, we have to identify the quantity that is reported on the statement is a…

Q: To study cockpit sound level (the variable Noise) the following data was taken on 59 plane flights:…

A: The multiple linear regression model is given by: Noise^=64.00-0.47×Climb-1.18×Descent+0.08×Speed…

Q: Using the data below, can I get some help responding this problem?Using checking account balance as…

A: Solution: Enter the data in excel sheet. Here, the dependent variable is balance. Independent…

Q: Exercise science researchers collecting data within their state noticed that teens who spend more…

A: Exercise science researchers collecting data within their state noticed that teens who spend more…

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: Construction costs in East LA is not cheap.  You want to build a simple cost estimator for…

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Q: answer asap please: Raw data are rates of return for 5 possible factory locations : 6.5 , 7. 7, 8.3,…

A: 1. Data Minimum = 1.2 2. Data Range = 8

Q: Give an example of a data set whose mean is greater than its median.

A: Let a data set is 25, 8, 9, 4 and 52.Mean:

Q: Do all the predictors help to explain Y , or is only a subsetof the predictors useful?

A: Coefficient of determination state how much variability of the dependent variable is explained by…

Q: (a) The length of time it takes to fill up your gas tank. answer: (b) The number of errors found on…

A: The length of time is continuous data. So, Length of time to fill gas tank is continuous data.…

Q: Which of these statements correctly describe examples of qualitative and quantitative data? Select…

A: Solution A qualitative data depend upon on the quality or attributes and cannot measured…

Q: Determine whether the following examples are discrete or continuous data sets. Write "DISCRETE" for…

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Q: write a paragraph that discusses: Why is this graphic might be needed for that specific topic Why…

A: Given information: Topic: Americans who have tried marijuana Variable: No. of people (Americans)

Q: The rows of data set represent observations true of false

A: We know that, if there is a dataset then A row represents the observation whereas The column…

Q: Mode can be more than one in a data set but medium cannot be.explain

A: Median: The median is the middle value in an ordered sequence of data. If there are no ties, half of…

Q: Categorize (categorical/discrete/continuous) the following variables. In which scale…

A: Scale of measure are used to different the variable based on the variable. There are four type of…

Q: relating x = body diameter in centimeters and y = height in centimeters of prehistoric vessels…

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Q: Define the term Qualitative variable with example?

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

Q: You wonder whether talking to plants keeps them from dying. You conduct a study in which you talk to…

A: Given: You wonder whether talking to plants keeps them from dying. You conduct a study in which you…

Q: Give three real-world examples of an theoretical distribution of data.

A: Theoretical distribution :  It is depend on logic or mathematical formulas,  In simple words :  We…

Q: The name of your cat is an example of nominal data. O True False

A: nominal data: nominal data is  a type of data thatis used to lable variables with out providing any…

Q: Describe a real-world example in which one measure of central tendency provides useful information…

A: Let us consider a dataset representing the total money drawn for 10 days- Since there is an outlier…

Q: prove that If we multiply the data values by a constant (say, c), value of geometric mean will be…

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