A wedding photographer has made $500 on average in the 5 years it has been operational. When 12 months were analyzed, it was found that he made $620 per month. Does the value $500 refer to the parameter or to the statistic?  Is the value $650 a parameter or a statistic? State two advantages of using a sample statistic rather than a parameter.

Q: 2. Anxiety level and average grade of selected grade 11 students. Anxiety level 2 3 5 7 GPA 95 92 91…

A: The scatter plot can be obtained using EXCEL software. Enter the values of English in column A and…

Q: A college counselor wants to determine if the number of hours spent studying for a test can be used…

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

Q: 1. English and Science grades of five science club officers. English grade 80 80 85 Science grade 80…

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: In Exercise, we have provided simple data sets for you to practice the basics of finding measures of…

A: a)  Range is the difference between highest and lowest values in the data set.From the provided…

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

A: " fishing" is a data mining  practice in which large volumes of data are analyzed seeking any…

Q: What is the mode of data? What is the range of data?

A: Given that Frequency data of time taken to complete laps in minutes. In this freq. data 5th no. of…

Q: n words, explain what is measured by variance and standard deviation.

A: Variance: A variance of a data set measures that the average amount of variation from the…

Q: write an analysis for the data above and what does the p value mean?

A: From the given information we find the solution.

Q: In the data set below, what are the lower quartile, the median, and the upper quartile? 1 2 3 3 3 5…

A:

Q: What is the proxy or measurement of the variables for tertiary education

A: Solution

Q: The ordinal level of measurement is represented in which variable below? race income IQ position in…

A: We know, there are four levels of measurements : i) Nominal ii) ordinal iii) interval iv) ratio.…

Q: P(Lung cancer | Smoker) is

A: The Given information shows that out of the total population 11% are smokers. as per the medical…

Q: Define the term indicating variable?

A: Definition : Indicating variables are also called as dummy variables. They takes only binary values…

Q: For his statistics assignment, Johnson examineddifferences in quality of grades obtained by students…

A: Johnson examined differences in quality of grades obtained by the students on regular program of a…

Q: Which measure of center is best to consider when more than 50% of your data is the same value? a)…

A: To find the correct option

Q: A high school guidance counselor analyzed data from a sample of 200 community colleges throughout…

A: Population: Population consists of the complete set of subjects that are included in the study for…

Q: For the data described​ below, identify the level of measurement as​ nominal, ordinal,​ interval, or…

A: Q) For the data described​ below, identify the level of measurement as​ nominal, ordinal,​ interval,…

Q: Read the given scenario and pick the correct test procedure. Think about the type of data, how many…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer only first three…

Q: For each question, determine whether it is a statistical question. If it is a statistical question,…

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

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: what is the independent and dependent variable in the sentence below?   What is the level of…

A: Variables are any characteristics that can take on different values, such as height, age,…

Q: Which one measure of variation should you report for the variable AGE (people write their actual age…

A: The measures of variation are descriptive statistics that determine the spread of the data.

Q: At SKYCTC, the average class size is 22. A recent survey of five math classes showed the average…

A: Parameter:Any statistical measure based on all units in the population is called Parameter.Here, the…

Q: In conducting a research, which measure are you going to use? Parameter or statistic? Why?

A: In conducting research we will use statistic   As Parameter is used when we take the whole…

Q: Identify two types of variables and four scales of measurement. How they are related with each…

A: Variables: In statistics, variable is defined as an entity which may takes different values. It…

Q: using the data below, what are the conclusions of the test?

A: Based on the analysed results above, we see that the data consists of,  Contrasts - 1, 2 and 3 ,…

Q: why do we need to study the variation of a collection of data?

A: Variation is nothing but the distance between the mean of the data from the data point…

Q: What is the scale factor?

A:

Q: What steps should you follow in collecting the data of your study?

A: Data collection: In this stage, the data was collected from various sources for analysis. Here, the…

Q: For his statistics assignment, Johnson examined differences in quality of grades obtained by…

A: Johnson examined differences in quality of grades obtained by students on the regular program of a…

Q: How do you explain the variables of a histogram?

A: Histogram is a visual representation by showing the frequency of data that fall within a specified…

Q: What are the data types of the variables below by measurement scale?  (a) Candy brands Ted likes…

A: Introduction: There are four measurement scales: nominal, ordinal, interval, and ratio.

Q: Determine whether the data is qualitative or quantitative? Mascots of professional basketball teams

A: Qualitative data  The data which is characterizing something Is the qualitative. It is non numerical…

Q: Median as quartiles can be termed as Select one: a. Q4 b. Q2 C. Q3 d. Q1

A: GivenMedian as quartiles can be termed as

Q: Which statistical tool studies the relationship between two or more variables? a. Median b.…

A: Answer: Correct option is:  b. Correlation

Q: Explain if two variables consist of nominal data?

A: Nominal Data: This  is used to label variables without providing  values that are quantitative in…

Q: Javier sleeps 9 hours the night before his science exam. His twin sister has the same exam and…

A: Here,the comparison is made on the basis of their exam scores.The additional factor is the duration…

Q: How to find the relative and percent error in this data?

A: From the given data the equation is of linear type in the form of a line equation Y = a+bX The line…

Q: What is the scale factor ?

A: Given ,  We have to find scale factor

Q: independent variable.

A: Measures of variability (sometimes called measures of dispersion) provide descriptive information…

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: Is the following nominal, ordinal, or interval data? Explain your answer.  Stock prices

A:

Q: What is the dependent and independent variable in the sentence below?   What is the relationship…

A: Dependent variable: is the effect. Its value depends on changes in the independent variable.…

Q: For each problem, you must state the hypotheses, calculate the test statistic, and explain your…

A: Provided table reports the relationship between class standing and political orientation for a…

Q: Considering yourselves to be observational units, explain why the following are not variables:…

A: The three examples of non variable are given. We have to explain why these are not variables.

Q: a. What is the level of measurement of the following variables? Explain i. Age at last birthday: ii.…

A: The level of measurements is extremely important to know.

Q: Identify the variable as either qualitative or quantitative.   The marital status of individuals

A:

Q: A doctor wanted to determine whether there is a relation between a male’s age and his HDL (so-called…

A: observation X Y X.Y X^2 Y^2 1 38 57 2166 1444 3249 2 42 54 2268 1764 2916 3 46 34 1564 2116…

Q: Determine whether the variable is qualitative or quantitative.   Favorite TV Show

A: Quantitate data are data with a specific number and range.

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.