Which of the following exponential smoothing constant values (a) puts the same weight on the most recent time series value as does a 4-period moving average? O .80 Ⓒ .25 Ⓒ.20 0.75

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A: The formula of confidence interval for slope is,Where, bl denotes the slopeSb1 denotes the standard…

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A: P(Z<z)=0.80

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A: We know thatCluster sampling is defined as a sampling technique in which the population is divided…

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A: a)The jar contains 8 red balls, 4 white balls and 9 yellow balls.

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A: Sample size, Sample mean, Population standard deviation, Confidence level,

Q: A data set includes the counts of chocolate chips from three different types of Chips Ahoy cookies.…

A: A data set includes the counts of chocolate chips from three different types of Chips Ahoy…

Q: You compute a 95% confidence interval for the mean of a variable X from a large random sample to be…

A: The 95% confidence interval=(22.64 , 45.68)Lower limit=22.64Upper limit=45.68

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A: We have a family of 3 children. The set of possible outcomes is .The M represents a male child and F…

Q: Airplane Speeds The airborne speeds in miles p correspond to the given percentiles by constructin…

A: classfrequncy366-3864387-4072408-4283429-4492450-4701471-4912492-5123513-5334

Q: Sheer industries is considering a new computer-assisted program to train maintenance employees to do…

A: Note:Hi there! Thank you for posting the questions. As the answered question has done correctly, we…

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A: As per our guidelines we are suppose to answer only three sub parts .Mean()=$1600Standard…

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A: Let X be the random variable of the price for HD Television.Given that,

Q: 1. Use R's "pbinom()" function to verify Chebyshev's inequality for k=2 and k-3 when X follows…

A: Given that, X follows Binomial distribution with parameters and .

Q: Use the Standard Normal Table or technology to find the​ z-score that corresponds to the cumulative…

A: Here we have to indentify the value of z which is P(Z<z) = 0.4541

Q: Can you please give me two sets of data where the shape distribution is different but the boxplot is…

A: A boxplot, also known as a whisker plot, shows the median, quartiles, and any probable outliers in a…

Q: 5. If X is normally distributed with a mean of 6 and a variance of 25, find a) P(1.2 ≤X -2) c) P(6…

A: Let X be a continuous random variable which is normally distributed with mean μ=6 and variance…

Q: Using the 4 weeks of data below, forecast sales for the fifth week using a 3-week weighted moving…

A: weeksales145255360450

Q: 3. To examine the calming effect of pets during stressful situations, you recruited 40 five-year-…

A: Given that,n = 40 (number of children)k = 3 (number of groups)SStreatment = 248.3 and SStotal =…

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A: (As per our standard guideline, we are supposed to answer only 1 question).In Bayesian statistics,…

Q: Cough and Headache At the 98% confidence level, should be nurse inform the managers that their…

A: The number of sampled patients that complained of cough and headache, n=230.The number of patients…

Q: A random variable X follows the continuous uniform distribution with a lower bound of -4 and an…

A: Lower bound=-4Upper bound=18

Q: dentify the variable in the information below. USA Today reported that44.9%of those surveyed (1261…

A: 1261 adults surveyed ate in a fast-food restaurant one to three times each week.

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A: The critical value for the linear correlation coefficient is a value that is used to determine…

Q: Suppose X1, X2, and X3 are independent Bernoulli random variables with success prob- abilities p1,…

A: E(X1E(X2)=p2E(X3)=p3

Q: Using R, use antithetic variables to estimate the following: 3 0 = Se -t²4 P7+1dt Note: For each of…

A: The antithetic variable method is a variance reduction technique used in Monte Carlo integration. It…

Q: In each case, determine the value of the constant c that makes the probability statement correct.…

A: (a)    Φ(c) = 0.9846(b)    P(0 ≤ Z ≤ c) = 0.2995(c)    P(c ≤ Z) = 0.1335

Q: You are interested in finding a 98% confidence interval for the average commute that non-residential…

A: 20,22,26,20,19,11,17,9,22,13,24,15,9,23,19sample size(n)=15

Q: Which statement is not correct? A. Spurious correlation can often be reduced by expressing X and Y…

A: From given,we need to find which statement is not correct from the available statements.

Q: n. At the significance level of 0.05 can we conclude that men spend more?

A: Given,the amounts spent in a week by men and women.Also, the amounts aren't normally distributed,…

Q: A marketing researcher is hired by a corporation to conduct a study and estimate the population mean…

A: The formula of sample size is,

Q: A statistics instructor believes fewer than 20% of Clayton State University students attended the…

A: The random variable is attending the midnight showing.We have to write the null and alternative…

Q: Based on an analysis of sample data, an article proposed the pdf  f(x) = 0.25e−0.25(x − 1)  when…

A: Given,

Q: Consider a random variable X having pdf Give the cdf of Y = |X|. ƒx(x) = ² I(-2, 1) (x). 3

A: Given a random variable X having pdf:

Q: Over the past few decades, public health officials have examined the link between weight concerns…

A: sample size(n)=273x=63

Q: A state lottery randomly chooses 6 balls numbered from 1 through 42 without replacement. You choose…

A: The question is about discrete probability distribution.Given :Randomly selected no. of balls =…

Q: Find the variance and standard deviation for the sample

A:

Q: Let X be a random variable with cumulative distribution function { Fx (t) = te (a) Find fx, the…

A: F(t)=1−1logt;t>e

Q: More information on the regression equation that is presented

A: The general simple linear regression equation is given as:and we have given a regression equation as…

Q: The highest recorded temperature during the month of July for a given year in Death Valley, in…

A: The mean of the distribution, oFThe standard deviation of the distribution, oF

Q: An automatic car wash takes exactly 5 minutes to wash a car. On average, 5.6 cars per hour arrive at…

A: The automatic car wash takes 5 minutes to wash a car.The average number of cars arriving at a car…

Q: 30 Adults were asked which brand of ice cream they prefer and if they rather eat it in a cup or…

A: Solution-:We have given the following table: (A) Brand A(B) Brand B(C) Brand C(P) Cup235(E)…

Q: Assume the random variable Xhas a binomial distribution with the given probability of obtaining a…

A:

Q: It is important to note that Math 34/134 Section 2123 has no prerequisite required to register, only…

A: The box plot helps in understanding the distribution of the data.

Q: Suppose a batch of steel rods produced at a steel plant have a mean length of 194194 millimeters,…

A: We have given thatMean = 194Variance() = 121Standard deviation() =  = 11Sample size (n) = 339

Q: The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 40…

A: Given   Let x be the production of a randomly selected cow in liters.

Q: Problem 8 As a quality control engineer at an aircraft manufacturer, you investigated wiring errors…

A: n = 1600, x = 8C.I = 99% = 0.99

Q: I'm conduting a research study based around the question, does society influence women's self image?…

A: A study around the question, does society influence women's self-image? is being conducted.

Q: Christaker is considering transitioning to a new job next year. He will either keep his current job…

A: Net income is $77,000.The economy will be strong with 20% chance ($87,000 net income), Average with…

Q: About 60% of babies born with a certain ailment recover fully. A hospital is caring for five babies…

A: It is needed to check whether the given scenario is a binomial experiment or not.

Q: # 10-13 Eleven states were randomly selected from among the 50 United States. This data represents…

A: From above tableY^=98.74-1.006x r2=0.81