What do you think is the importance of knowing the concepts of normal curve? Answer at least 5 sentences

Q: What is the 73rd percentile of a normal curve? * Previous

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Q: what is a statistical test and test value? give an example

A: The statistical test is very helpful in statistics while conducting the survey or in research. So…

Q: In what way might an average be missed used? Alternatively, how might an average be misinterpreted?…

A: Average is defined as a single representative of the data . It is always used to describing certain…

Q: What is the Empirical Rule? Explain

A: Note: “Since you have posted many sub-parts. We will solve the first three sub-parts for you. To get…

Q: Which is more affected by extreme observations, the mean or median? And how about the standard…

A: As median and IQR are not affected by the outliers, options (b), (c) and (d) are considered as…

Q: What is the mean, standard deviation and variance of the time the subjects stayed balanced?

A: We have given that, The data of 8 females. The balance times data is, 34, 38, 29, 23, 33, 28, 32,…

Q: How is the normal curve important in psychological testing?

A: Here we have to explain how the normal curve important in psychological testing

Q: standardized scores and normal

A: Normal distributions have a specific curve, and I’ve already posted about that elsewhere; the…

Q: Could the graph represent a variable with a normal distribution? Explain your reasoning Select the…

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Q: What is the average score for those who are confident about asking questions they don't understand…

A: The bar graph is provided for those who are confident about asking questions they don’t understand…

Q: A recommendation for the amount of vitamin C that a person should have per day is 75 mg. A…

A: given that

Q: Say, for a different dataset consisting of 15 observations, the corresponding normal probability…

A: Here, There are 15 observations given and the slope for the data is equal to 7.21 and y_intercept is…

Q: True or false? the sample mean is  an unbiased point estimatior of the population mean

A: Point estimator is the process of finding the approximate value of a population parameter. An…

Q: Illustrate the mean or expected value, variance and standard deviation

A: given: x f xf (x- x )2 f*(x- x )2 4 1 4 25 25 5 2 10 16 32 8 2 16 1 2 10 2 20 1 2 13 2…

Q: Does the sample size n affect the standard deviation of all possible sample means? Explain your…

A: According to central limit theorem, for large sample (>30) or if the population follows normal…

Q: A researcher is studying the effects of college experience on attitudes, values, and behaviors and…

A: Given values, Freshman mean= 5.23, Standard Deviation=1.78, Sample Size 145 Seniors Mean= 5.12,…

Q: What do you understand by normal distribution? Write in your own words.

A: Here we have to define the normal distribution

Q: The best point estimator for the population mean is the sample mean. True False

A: TRUE

Q: What happens to the mean and the standard deviation as sample size increases? Why?

A: It depends on the actual data added to the sample, but generally, the sample standard deviation will…

Q: What is the mean and standard deviation?

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Q: What does this symbol represent? standard deviation mean of the mean of the sample standard…

A: Standard deviation of sample mean is denoted by symbol σx¯ Mean of the sample means is denoted by…

Q: What is the mean, variance and Standard Deviation?

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Q: 5. What proportion of a normal distribution is located between the mean and z= -1.40?

A: Here we have to find  P(-1.40 < x < 0)

Q: Refer to the Baseball 2018 data, which report information on the 30 Major League Baseball teams for…

A: The data is given by :   R-code: The mean & standard deviation is obtained as : R-Code:…

Q: What is the difference in meaning between the Standard Error of the Mean and and the Standard…

A: In statistics, a sample mean differs from the population's real mean; this difference is known as…

Q: Which normal distribution has a wider spread: the one with mean 1 and standard deviation 2 or the…

A: The one with the larger spread is the one with the larger standard deviation.

Q: What is the difference between a normal and binomial distribution?

A: Statistics uses normal distributions more often than binomial distributions most of the time.…

Q: How do I explain applying the normal curve to a set of test scores?

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Q: what is the importance of knowing the concepts of a normal curve?

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Q: What are the means and standard deviation of the list below.

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Q: what is the correct test statistic table to use when you are comparing the mean weight of a sample…

A: Since the population standard deviation is unknown, so to compare the mean weight of sample…

Q: What is the range of the distribution? What is the value of the variance of the data set? What is…

A: We have to calculate the range, variance and SD of given dataset. Range = Maximum - minimum And SD…

Q: 1. What is another term used for standard normal score? a. mean score c. x score b. t-score d.…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: Course is psychology statistics. Explain the difference between the body and the tail of a…

A: To Explain difference Between boday and tail of a distribution, We need to know Box Whisker plot

Q: Why does the mean accurately summarize a normal distribution? why does the mean inaccurately…

A: To summarize a normal distribution, the distribution is spread evenly on both sides of the curve. In…

Q: What effect does increasing the sample size have on the population standard deviation? I know that…

A: The increase in the size of the sample, decreases the population standard deviation. This happens…

Q: A group of economists thinks that the variability in median income is small relative to the median…

A: Solution: x (x-x) (x-x)2 80 9 81 70 -1 1 83 12 144 65 -6 36 88 17 289 66 -5 25 60…

Q: Does the sample size ? affect the standard deviation of all possible sample means? Explain your…

A: Sampling distribution of the sample mean: If the true population distribution of a random variable,…

Q: What do you mean by a normal curve (normal distribution) ?

A: Given : Normal curve (Normal distribution)

Q: Which is more affected by extreme observations, the mean or median? And how about the standard…

A: Solution: Here, it is to find that which is more affected by extreme observations.

Q: what is the mean absolute deviation? 6, 5, 7, 2, 4, 8

A: We will find the mean absolute deviation as following.

Q: Which of the following is not a measure of central tendency? Check all that apply. O Standard…

A: Measure of central tendency: A measure of central tendency (also referred to as measures of centre…

Q: a) What is meant by the term "Normal Distribution". Is the normal distribution important in…

A: Normal distribution: A continuous random variable x is said to follow a normal distribution with…

Q: How to Convert raw scores to deviation scores?

A: Standard normal distribution: Standard normal distribution is the normal distribution with mean as 0…

Q: Which is not a measure of dispersion? a. Mean b. Standard deviation c. Variance d. Range

A: Explanation: The measure of dispersion is as follows: Standard deviation Variance Range…

Q: What is the explanation for the normality test?

A: Here we explain normality test.

Q: Where are most of the data gathered in a negatively skewed distribution? Which value is largerthe…

A: We have to describe the negatively skewed  distribution and locate the position of mean relative…

Q: True or false? The mean is the best measure of central tendency for a data set where they are no…

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