ignificance is referred to as "independent of observations". Explain this assumption.

Q: the claim that the mean breaking strength has increased

A: Given : n=18 , X-bar=1919  , σ=70 , μ0=1875 , α=0.01 We want to test the claim that an improvement…

Q: Among the measures of center discussed, which is the only one appropriate for qualitative data?

A: Measures of center: Mean: The arithmetic mean (also called the mean) is the most commonly used…

Q: What is meant by an influential observation?

A: The definition of an influential observation is give bas follows:

Q: What does an extreme value at the high end of the data set mean?

A: The numerical data can be divided into two parts. One being discrete and other continuous. As the…

Q: The median for the dataset used to create this histogram could possibly be in which range?

A: Frequency Distribution table : Class Frequency Cumulative Frequency 2-4 1 1 4-6 4 1+4=5 6-8…

Q: Between the mean and median, determine which would be a better estimator given that a sample…

A: The sample mean is, x¯=∑xn=3+8+26+14+125=635=12.6 The data in the ascending order is 3, 8, 12, 14,…

Q: In this section, we discussed two types of statistical designs. Identify and explain the meaning of…

A: The two types of statistical designs are,Completely randomized design.Randomized block design.

Q: Explain why the minimum and maximum observations are added to the three quartiles to describe better…

A: Quartile: Quartiles are the values which divides the data into four equal parts. First quartile:…

Q: An automobile insurance agent believes that company A is more reliable than company B. Which level…

A: We need to use concept of Scales of measurements to solve this

Q: What type of analysis and descriptive statistics should be conducted to best depict the relationship…

A: 1) The number of hours in the operating room is a continuous variable and the number of hours on a…

Q: Distinguish briefly the Parameters and statistics

A: A parameters is a values that describes some aspect of a population . A parameters may be very…

Q: Suppose that you have a data set that contains a large number of observations. Which graphical…

A:

Q: the measure of variability that is influenced most by extreme values is

A: The range is the measure of dispersion or variability. The range can be calculated as: Range…

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: The histogram below demonstrates the distribution of Grade Points senior class students of Economics…

A: Given information: The given histogram demonstrates the distribution of Grade Points Averages (GPAs)…

Q: What is an example of a statistical presentation ? Can you tell me what is it telling me ? What…

A: In statisics, graphs are helpful in presenting the statistical data. In order to improve the…

Q: Describe what an unbiased estimator is and give an example of an unbiased estimator and a biased…

A:

Q: A research team wants to know whether the mean stress level of employees with pets is different from…

A: Here, the test is to be conducted to check whether the mean stress level is different of employees…

Q: Why inferential statistic is important for physical activity educators ? Please provide two examples…

A: 1] Inferential statistics is used to make the generalization about the population based on the…

Q: I’ll be using one of the statistical tests that we discussed this semester to determine whether…

A: Here we want test whether student's score on the pre course and post course knowledge assignment is…

Q: What aspect does the repeated measure test decrease when compared to an independent to test?

A: Given: The repeated measure that results in decreasing the measure test based on comparing with an…

Q: What is the similarities of parameter and statistics

A:

Q: What is the difference between a population and a sample? Which is described by a parameter and…

A: Determine the difference between the population and sample.   The difference between the population…

Q: explain the differences of parameter and a statistic

A: It is needed to state the difference of parameter and statistic.

Q: Give a situation in your area that is an example of parameter and statistic, Explain why you…

A: A parameter is a function or characteristic of a population. A statistic is a function or…

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

A: (a) The given statement is, A sample of 25 cities have been classified as high or low on their…

Q: _________ is the best measure of central tendency you can use for continuous data that is skewed

A: Given that, The distribution is skewed.

Q: Should averages be taken literally? What are the drawbacks?

A: Average is a summary statistic that represents the center point or typical value of a dataset. It…

Q: Are the statistical techniques used in the analysis of data appropriate to the levels of measurement…

A: Statistics               Statistics is widely used to gathering the different datasets,…

Q: Define the concept of Consistency in statistics? when can we say data is perfectly consistent?

A: Consistency or a consistent estimator is one that uniformly converges to the true population value…

Q: With reference to Healthcare, explain the applications of Statistical Quality control.

A: Statistical quality control is the use of statistical approaches to the monitoring and maintenance…

Q: I do not understand how to Label and interpret the appropriate measure(s) of central tendency

A: Measures of central tendency: Measures of central tendency represents the typical value or center of…

Q: Make a conclusion based on the histogram (attached below)

A: We need to make interpretation based on given Histogram

Q: Question 16 Indicate whether the race of a person is a quantitative variable or a categorical…

A: Quantitative variable is based on the measurements in form of counts and numbers. And Categorical…

Q: For what types of data would you use nonparametric verses parametric statistic?

A: In hypothesis testing, the parametric tests are used to make inference on some unknown parameters…

Q: Extrapolating may lead to wrong predictions

A: Given:  Extrapolation: The process in which you estimate the value of given data beyond its range is…

Q: A Midwest college admissions committee recently conducted a study to determine the relative debt…

A: Let, s1 and σ1 be sample and population sd's of four year graduates respectively s2 and σ2 be sample…

Q: Give a situation in your area that is an example of parameter and statistics.Explain why you…

A: parameter is related to population and statistic is based on the sample

Q: Researchers wished to know if they could conclude that two populations of infants differ with…

A:

Q: re interested in examining the variability in current marital status by race. Which measure of…

A: Nominal variables are used with categorical data because they do not have quantitative values. In…

Q: If it was found that two variables have a statistically significant relationship, we conclude that…

A: Correlation:   Correlation gives the information about strength of the association and direction of…

Q: Give your opinion on this. Greek letters are used for statistics as opposed to parameters.

A: Statistic: If the value is a numerical measurement describing a characteristic of a sample then the…

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: State the empirical rule for variables.

A: The empirical rules for variables are as follows:68% of all possible observations lie within one…

Q: Please discuss the concepts of Mean, Median, Mode, and Standard Deviation, including when each…

A: Given data  To dis cuss the concepts of mean, median , mode and standard deviation

Q: what is interval data?

A: Interval data: When the data are numerical values that can be added or subtracted, but not divided…

Q: _________ are used to display actual data points for individual-level data. Would this answer be…

A: Univariate Statistics:Univariate data is that the data information is depends on only one random…

Q: A researcher plans to do a study to see whether people who eat an all carbohydrate meal have…

A: From the question we know that the independent variable is 'Type of meal' which has two levels…

Q: When you do not have the luxury of centering the statistics, you may need to define a non-centrality…

A: Non Centrality Parameter is used to get the power of test i.e. the degree of null hypothesis be…