Table 1. Tally sheet for single-coin toss (individual) Group of 10 throws Deviation from expected value 2 20% Number of tails Number of heads 1 4 6 2 5 7 4 40% 2 20% 6 60% 2 20% 6 60% 3 3 4. 7 8 5 7 4 40% 10 2 20% Total 48 52 68425 34유

Q: Describe the statistical techniques of Moving Averages and Exponential Smoothing?

A:

Q: how do i get the standard error

A: Standard error = standard deviation/√n  n = number of observations Standard deviation =…

Q: P(75<x<105) mean is 80 and standard deviation is 94

A: Mean = 80 Standard deviation = 94

Q: What is a residual?  Explain when a residual is positive, negative, and zero.

A: We have to define the residual and discuss different cases.

Q: What is a type 1 and type 2 error? How are they related to each other?

A: First of all, we know that there are two types of arises in the testing of hypothesis because, in…

Q: erence of regression test can be used on categorical data. true or false

A: Regression model helps in estimating the relationship between dependent variable and independent…

Q: How do you find z-score with only a standard deviation and the simple mean? They aren't providing…

A: Let us assume we have a population which is normally distributed with mean µ and standard deviation…

Q: Calculate the Residual associated with the prediction of your height. Is the predicted height an…

A: The regression equation that is calculated to predict the height using the shoes sizes is as follows…

Q: to calculate the standard error of the mean what will you need

A: Consider a random variable X, has mean µ and the standard deviation of σ.

Q: What is the expected average height of 8 year old boys, using the regression equation?

A: From the given information, the obtained regression equation is y=27.84+2.573x.

Q: When you use the two-standard-deviations F-test, what assumption must be met by the variable under…

A:

Q: Explain how standard deviation is calculated and how does it play an important role to determining…

A:

Q: Figure shows three residual plots and a normal probability plot of residuals. For each part, decide…

A: Assumption for regression inferences: Population regression line: There exists constants β0 and β1,…

Q: Please also explain why you determined whether or not the results are statistically significant.  A…

A: From the given information we find the solution.

Q: True or False: The residual of a data point is the observed value minus the predicted value.

A: Introduction: The population regression model of a response variable y on explanatory variables, x1,…

Q: FIND THE test statistics value  FOR  TWO TAILED TEST  SAMPLe sixe 26 and level of significance is…

A:

Q: Lengths of pregnancies of humans are​ N(268 days, 16​ days). Use the Empirical Rule to determine the…

A: The percentage of women whose pregnancies are between 252 and 284 days is obtained below:It is given…

Q: Explain why we might sometimes consider explanatory variables in a regression model to be random.

A: Hint: Here we need to write why sometime we use explanatory variables.

Q: What does Z-score tell you about someone's score in a class and what does it mean if it is negative…

A: Z-score. Consider the score of someone in a class as x. Z-score: The Z-score measures a particular…