What is the class expected and chi square

Q: What are the merits of arithmetic mean?

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Q: The mean can also be thought of as the balance point most common point O point of no return O center…

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

Q: Explain exactly how a paired t-test can be formulated as a one-mean t-test.

A: One mean t-test: Null and alternative hypotheses: The investigator is interested to test whether the…

Q: Which of the following statements is not true? Answer: is not true. Banco de palabras: The…

A: From the given information we Want to know the not true statement.

Q: Inthe football game it is quite common that players suffer injuries. THE NFL reported several…

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Q: What is the Rsquare .321 value mean?

A: From the provided information, R square = 0.321

Q: Why do you think someone might use a double negative? Do you think it is okay to use them in your…

A: For the solution of the problem follow the next step.

Q: Devise a set of ten numbers so that nine of them are “above average,” that is, nine of the numbers…

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Q: (d) The mean sample x, x, 7, 9, 11, 12, 3x, 18 is 10.25 with x constant. Find the value of x.

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Q: What is mean if n is 7 and p is 0.2

A: Given, n=7 p=0.2

Q: Find the mean? 60 57 59 52 57 63

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Q: Bias is a simple average of errors. True O False

A: We have to write the correct statement about bias.

Q: What is the mean? 5 6 7 11 11 11 11 11 13 23 33 35

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Q: need answer for expected value

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

Q: A manufacturer of flashlight batteries took a sample of 10 batteries from a day's production and…

A: Normal distribution, also known as the Gaussian distribution, is a probability distribution that is…

Q: To calculate the mean, ______ all the numbers in the data set and then _______ the total by the…

A: If the given data is  x1, x2, x3,................., xn Are the n terms

Q: If the mode of the scores 10, 12, 13, 15, 15, 13, 12, 10, x is 15, then what is the value of x?

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Q: How are forward error and backward error related?

A: Forward error and backward error are related terms in  numerical analysis and are used to measure…

Q: A Example79. Find mean, standard deviation and variance of first n natural numbere

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Q: The probability that a sample mean is within +/- 1 Z of the population mean is about

A: Given that The probability that the sample mean is within +/- 1 Z of the population mean is about…

Q: When it comes to statistics, what is quantification and how is it useful? When is it not useful?

A: Statistics: The term Statistics, in singular sense, means the aggregate of scientific methods which…

Q: Explain in 4 or more sentences, what effect moving a true population mean away from a hypothesized…

A: Given information: The investigator is specially interested in determining the effect moving a true…

Q: C is wrong can you walk me through how to do the chi-square table. this is a statistics class

A: Given that T follows a gamma distribution i.e

Q: Q2. (a) Define Arithmetic mean, Weighted arithmetic mean. Write some properties of arithmetic mean.

A: Here, we need to define arithmetic mean, weighted arithmetic mean and some properties of arithmetic…

Q: What is the variance of this set: {x, x+1, x+5, x+2}

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Q: late the mean cnd the medien frem the folowing froqury table Co-515- 15 lo - 1515-220-25 25 -3 3-55…

A: Class Frequency (f) Mid value (x) f⋅x cf 0-5 5 2.5 12.5 5 5-10 8 7.5 60 13 10-15 10 12.5 125…

Q: What is the important concept in inferential statistics? Explain it.

A: Descriptive and inferential statistics: Descriptive statistics concerned with describing the target…

Q: (b) come to a conclusion about a particular topic or phenomenon. The questions asked in a…

A: We know that the questionnaires are set of questions which are meant to analyse or come to a…

Q: The table shows the number of deaths in the U.S. in 2020 due to a variety of causes. The population…

A: From the provided information, The table of number of deaths in US in 2020 due to a variety of…

Q: a)What is N? lo) What is Sx?

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Q: What is R and why is there coding for R in basic statistics?

A: R is a statistical computing programming language that is designed only for statistical purposes.

Q: What is meant by the grand mean?

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Q: in two items are wrongly taken as 30 and 27 instead of 3 and 72, find correct Mean.

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Q: Question 1: The amount of time until an accident occurs at an industrial facility follows an…

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Q: Chi-square tests are nonparametric tests that examine nominal categories as opposed to numerical…

A: Chi-square tests are nonparametric tests that examine nominal categories as opposed to numerical…

Q: What is meant and implied by the term "the golden mean"?

A: Golden mean represents balance between extremes. In other words, it is the middle between two…

Q: Explain what variables would require a one-tailed test and what variables would require a two-tailed…

A: To find, Explain what variables would require a one-tailed test and what variables would require a…

Q: To test the equality of variances, you would use a tes O chi-square O F

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Q: Suppose that you were conducting a chi-square (Χ²) test of independence between undergraduate major…

A: From the given information, There are two variables: undergraduate major (Biology or Psychology) and…

Q: Mean, Median and Mode Homework What is the median? 20 0 10 4 3 0

A: Thanks for the question :)And your upvote will be really appreciable ;) Rearrange the number in…

Q: Thank you for your help! What does the expoenental - ( example: x¯) represent/mean?

A: Given: The average student spends about 17 hours each week preparing for classes. The standard…