A researcher used the sample median as a measure of center instead of the sample mean. What do you think could have informed his decision and why?  2.) An investigator decided to conduct a research to describe the average number of females in each family. Considering the case of  200 families in the town. Describe what may contribute to the difference between the value of the sample statistics and its corresponding population parameter.

Q: Discuss the meaning and use of THREE (3) measures of central tendency and TWO (2) measures of…

A: Introduction: A measure of central tendency of data is a measure of the tendency of the values to…

Q: Under what conditions would it be better to use the median instead of the mean?

A: n statistics, three measures of central tendency are widely used. These three measures are also…

Q: A Deloitte employment survey asked a sample of human resource executives how their company planned…

A: Solution To test the hypothesis we will use chi square test.

Q: What caution is must for finding the median for ordered qualitative data?

A:

Q: Which would be the most appropriate measure of central tendency to use for each of the following…

A: Measure of central tendency measures the central or average value of a dataset. There are many…

Q: Among those respondents who did not travel inside, what proportion is holding graduate degree. a)…

A: We have given that the table of travel inside and education level.   Note: According to Bartleby…

Q: If there are 36 data points in a set of data, what is the number of degree of freedom?

A: The basic definition of degree of freedom says that how many observation is free that is for how…

Q: What does The level of significance spotlights?

A: Level of significance is used in hypothesis testing. It is defined as the Type I error. The symbol…

Q: why do we need to find the measure of relative position of ungrouped data? and what is the position…

A: We know that the no single average is suitable for all practical purpose of data.each one of the…

Q: Which of the following research situations would be most likely to use an independent-measures…

A: Independent - measures design : It is a research method where multiple experimental groups are used.…

Q: 2. Kelly Sanchez is a college senior who is interviewing at several companies for a managerial…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: 1. Identify the three major stages of data analysis. 2. What does a researcher attempt to do when…

A: Data Analysis is the process of systematically applying statistical and logical techniques to…

Q: Dr. Matos sampled her statistics classes and recorded whether each student worked full-time,…

A: Given: out of 20 students Did not work = 3 Worked Full-time = 10 Part time = 7

Q: Consider the data scores; 7, 10, 14, 19, 25. Determine the IQR

A:

Q: 5. Find the three median x-values that would form the summary points of the median-median lin for…

A:

Q: Is there any skewness suggested by the mean, mode and median of the ungrouped data?

A: Skewness means lack of symmetry. The values of mean, median and mode fall at different points, they…

Q: What is level of significance?

A: Level of significance: The significance level is a value used as a criterion for deciding how small…

Q: Before beginning a new and costly advertising campaign, Starbucks would like to know how best to…

A: Given information: Given data represents the observed counts of two categories gender and coffee…

Q: Dr. Volk wanted to see if there was a significant association between in the number of college…

A: H0 : There is no association between in the number of college students by grade level (Freshman,…

Q: A Ministry of Education Human Resources Officer surveyed 75 teachers employed in public and private…

A: 2.1 a) Nominal: The level of measurement is nominal when the observations are defined in terms of…

Q: Is there a difference in the satisfaction rating of traditional cellphone providers who bill for…

A: Given: The number of sampled data values of traditional cell phone providers is 10 and 13 prepaid…

Q: Bank of America’s Consumer Spending Survey collected data on annual credit card changes in seven…

A: a. Null hypothesis : H0 : μ = 0 Alternative hypothesis : Ha :  μ ≠ 0 Therefore , it is two tailed…

Q: 4. The website realtor.com listed the following sale prices (in $1000s) for a sample of 10 homes…

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

Q: According to the game data, what is the mean score for the Goodyear Silents? What is the mean score…

A: The mean score for the Goodyear Silents is, Mean=∑xn=7+0+6+9+15+6+14+0+9+0+011=6611=6 Thus, the mean…

Q: 7. Give three real world examples where each measure of central tendency is utilized appropriately.…

A: Here's the explanation is as follows; Measure of central tendency , it is a single value that aims…

Q: Explain how you will ensure that data samples are of adequate size and are population when you…

A: It is asked to explain how you will ensure that data samples are of adequate size and are…

Q: 1. What is the measure of central tendency suitable for summarising the data on ice cream flavours?

A: Given data: What is the measure of central tendency suitable for summarising the data on ice cream…

Q: does this mean that the answer saying "The sample statistic equation is correct to use when the data…

A: Yes you are correct. The sample is the the subset of the population.

Q: How is the goal of descriptive statistics served by computing a measure of central tendency?

A: It is an important part of statistics . It is widely used .

Q: Is the mean or median a better measure of center for this data set? Why?

A: Given information:…

Q: Pick a sample problem where despite correlation, causation cannot be reasonable argument.

A: Let us take an example of sales of umbrella and sales of raincoats. Sale of raincoats Sale of…

Q: What is the relationship between the mean of a population and the mean of its sampling distribution?

A:

Q: what kind of statistical data might a barglar alarm company employ in trying to convince urdban…

A: Statistical Data: By statistical data, we mean the factual material used as a basis for discussion…

Q: Which of the following is the best measure of central tendency for age? Mode:55 Median:44.5…

A:

Q: For the following question- Is there a relationship between the final rating given by the customer…

A: Here we want to Know which test we can use here.

Q: When selecting measures of association and the two variables of interest are measured at different…

A: In Statistics, measure of association is used to quantify a relationship between two or more…

Q: When we comparing the hospitals in our area for seeking a better care, what statistics or data we…

A: It is an important part of statistics. It is widely used.

Q: What does level of significance indicates?

A:

Q: Suppose we wish to compare the health status of two groups of people. What variables might we use to…

A: Given information: The investigator is specially interested to compare the health status of two…

Q: 2. Consider the foot length and foot width of six female grade 4 students in Morning Star Montessori…

A:

Q: Why is hair color classified as categorical data?

A: In categorical variable we simply assign labels for identification. Categorical values are discrete…

Q: insurance in the 50 states and Washington DC for the year 2002.the percent of people not covered by…

A:

Q: 2. When we are dealing with nominal data, we typically prefer to use the mode as the preferred…

A: Mode is the only measure of central tendency that is used when dealing with nominal data. Nominal…

Q: Is there truly a significant difference between the two data sets?

A: Test is that whether there is truly significant difference between the two data sets. The test…

Q: A private research organization studying families in various countries reported the following data…

A: Disclaimer: Since you have posted a question with multiple subparts, we will solve first 3 subparts…

Q: 2. Explain the relationship between the population mean µ, the sample mean X, and a value of the…

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

Q: Consider a sample with data values of 10,20, 12, 17, and 16. Compute the mean and median.

A: The sample mean of a dataset is computed by dividing the sum of the observations ∑x by the total…