An investigator decided to conduct a research to describe the average number of females in each family. Considering the case of families in the town. Describe what may contribute to the difference between the value of the sample statistics and its corresponding population parameter.

Q: If the sample size is 30 for each group, there are 3 groups, and the mean score for football players…

A: Given data SSbetween = 60SSwithin = 105dfbetween = 3 dfwithin = 60α = 0.05Critical value of F is…

Q: How are the standard deviation and variance related to each other?

A: Hi! Thank you for posting the question. Since you have posted multiple questions, we are answering…

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: What is the benefit of modeling a random variable with a normal distribution

A: Here we have to give the reason for the benefit of modeling a random variable with a normal…

Q: How do I interpret the 6 charcteristics of data when I am only given the mean, median, mode, and…

A: According to the provided information, mean, median, mode, and standard deviation are given.

Q: Mention some of the factors that affect choosing a sample over a population when conducting a…

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

Q: What distribution is used in this chapter to make inferences for two population standard deviations?

A:

Q: What kind of test is used to solve the test statistic value for the population proportion?

A: We want to tell you what kind of statistic and test are used for population proportion.

Q: Describe about the hypothesis testing for population mean.

A: Single mean test: Single mean test is used to compare the mean of a variable in the sample of data…

Q: What is the distribution of a statistic based on a population parameter?

A: Population Parameter It is a characteristic of the entire population. The value of a population…

Q: If the variance of a Bar examination is 900, how large a sample is needed to estimate the true mean…

A: Variance=σ2=900, margin of error=moe=5, level of significance=0.01

Q: What is Two Related Samples?

A:

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: A random sample of 4000 U.S.citizens yielded 2280 who are in favor of gun control legislation. Find…

A: Given:A rondom sample of 4000 U.S citizensyielded 2280 who are in favor of guncontrol…

Q: Discuss the concept cases and formulas regarding Statistical Inference of Two Samples.

A: Given information: Statistical inference is the process of drawing conclusions about populations…

Q: Should be consider this score unusual? What is the value of the test statistic?

A:

Q: What is the equation for The standard deviation of the distribution of sample proportions

A: Let p be the population proportion of successes.

Q: When you are testing the difference between two means, it is not important To distinguish whether…

A: While testing the difference between two means,we might come across two circumstances.When the…

Q: Which are the steps involved in the construction of explanatory bivariate tables?

A: Explanatory Bivariate table: A Statistical technique intended to recognize and portray the…

Q: Explain about the Two Independent Samples.

A: Two samples are said to be independent if the sample values selected from one population are not…

Q: When I'm trying to infer the population mean from a small sample, why do I have to rely on the…

A: The assumptions for the z-statics is appropriate as given below:The samples are randomly selected…

Q: To study how water pollution has affected fishery, a scientist randomly selected 8 lakes of Florida.…

A: Given: Mercury Alkalinity 1.3 6 0.7 27 0.2 84 0.2 67 1.3 3 0.5 25 0.5 30 0.3 82

Q: Discusses two important characteristics of statistics used as point estimates of parameters: bias…

A:

Q: Why is that the mean (µ)  and standard deviation (σ) of populations are difficult/ impossible to…

A: Introduction :-  Here we have to describe or to give reasons to question why population study is…

Q: Hormal Bone Osteopenia | Osteoporosis 1200 1000 890 1000 1100 650 980 700 1100 900 800 900 750 500…

A: One way ANOVA : One-Way ANOVA ("analysis of variance") examines the suggests that of 2 or a lot of…

Q: a. An investigator decided to conduct a research to describe the average number of females in each…

A: Given that an investigator decided to conduct a research to describe the average number of female in…

Q: How is a sample related to a population? Why is a sample used more often than a population? What is…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: What are the similarities and differences of statistical inference of single mean as compared to a…

A: Generally, in the testing of a single population mean the distribution of a particular test for the…

Q: a random sample, this most likely made the data more accurate, but not precise O precise, but not…

A: 1):   Precise but not accurate  Explanation: In a high precision, low accuracy case study, the…

Q: What is the Empirical Rule and how does this rule apply to a normal distribution of data?

A: We have to define the Empirical Rule and how does this rule apply to a normal distribution of data.

Q: The distribution of sample means will always be normal if taken from a normal population. True or…

A: We know that if population is normally distributed then the distribution of sample means will always…

Q: The sum of squared of deviations of sample Mean is 48 and total number of observation is 13 then…

A: Given, The sum of squared of deviations of sample mean is 48 and total number of observation is 13.…

Q: We use information about populations to make conclusions about our samples. * TRUE FALSE

A: Given statement :  We use information about populations to  make conclusions about our samples

Q: Relative to the population mean, what happens to the possible sample means for samples of the same…

A: The sample mean is the average of all the observations sampled from the population.  If we have…

Q: What is "Statistics"? Give two types of statistics.

A: Statistics: Statistics is a branch of study which is concerned with the collection of data from…

Q: Give one method to increase statistical power and Which test statistic should you use if you are…

A: Given problem Given that   Method to increase the statistical power : a) Increase the sample size…

Q: There is a high correlation between ice cream sales and the number of shark attacks. Does this mean…

A: Correlation: Correlation a measure which indicates the “go-togetherness” of two data sets. It can be…

Q: In a test of significance, the hypotheses are stated in terms of: statistics. statistics or…

A: Answer : we know that test of significance  is a procedure to access the truth of a hypothesis…

Q: What advantages and/or additional information does LINEST offer compared to other statistical…

A: The LINEST function is used to calculate the statistics for a line using least square method.…

Q: When does Two Related Samples occur?

A: Definition: Related sample: Paird data is known as releated sample or coupling data also called…

Q: If we could not measure the population mean, we could use the sample mean as a point estimator of…

A: Given:  we could not measure the population mean, we could use the sample mean as a point estimator…

Q: What variable is not needed to calculate the sample size for a known population standard deviation?

A: The sample size formula is:

Q: For each scenario, indicate whether the parameter of interest is one proportion , a difference in…

A: The objective is to identify the appropriate parameter of interest for the given scenarios.

Q: When I’m trying to infer the population mean from a small sample, why do I have to rely on the…

A: Assumptions to use standard normal distribution to estimate population mean:The required conditions…

Average

In mathematics, everyone must have heard the term average in one place or other. Almost all types of calculation require taking out an average. In everyday life, the term is used for denoting a certain amount that can be said to be a typical quantity for multiple people or objects. In other words, if a group of people possesses a certain object, then the average gives us an idea regarding the quantity of the object possessed by each person. However, this is solely based on mathematical calculation. It is important to note that most people will not strictly have the average value in a group.