Sales for the past 6 months at Dalworth Company are given in the following table: Month Sales July 54 August September 63 55 October 37 November 33 December 30 What is the Mean Absolute Deviation (MAD) for August through December forecasts produced by using exponential smoothing with a = 0.2? (Note: Do not round the forecasts, and choose the closest answer.)

Q: An economist conducted a study of the possible association between weekly income and weekly grocery…

A: Solution-: Given data: Let, X=Income and Y=Grocery X Y 98 52 201 78 298 108 398 95 481…

Q: a) RDL Corporation has one small plant located on the outskirts of Manila. production is limited to…

A:

Q: lou and your friend carpool to school. Your friend has promised that he will come pick you up at…

A:

Q: During a barangay census, the following information was acquired. 15 children out of 23 are…

A: Solution: The given information can be written  in tabular form as given below    Children…

Q: Of all awarded prizes, 2% are worth $1000, 10% are worth $100, and 88% are worth $10. Let X be the…

A:

Q: A researcher obtained students' average SAT scores in each of the 50 states and the average teacher…

A: As per Bartleby guidelines I can't answer more than one question per post. Please post other…

Q: If two random variables X and Y are independent, then Mxy (V1,V2) = Mx (V, ) M, (v2) %3D XY

A:

Q: Bivariate Data Camera Width (cm) vs Weight (Kg) Width (cm) Weight (kg) 7.2 150 7.9 100 9.8 245 9.4…

A: Please find the explanation below. Thank you

Q: standard deviation?

A: From the given data, the minimum and maximum values are, 20.5 and 110.7 The range is, The mean is,

Q: Explain the problem of unit root in standard regression and in time-series models and explain how to…

A: Problem of unit root in standard regression and time series models: The unit root tests are applied…

Q: Business process improvement - Statistical Process Control (3) While conducting process capability…

A:

Q: For items 11 to 14: A study was conducted to investigate the interactions between California…

A: Given the the output path diagram of the interactions between California sheephead, macroalgae, and…

Q: ween California sheephead, macroalgae, and urchins. The output path gram of the study is given…

A: *Answer:

Q: 13. From the following frequency distribution given the temperature in different days. Find mean.…

A:

Q: What type of variable is "monthly rainfall in Vancouver"? O A. quantitative B. categorical O C. none…

A:

Q: Xm fXm 61-65 5 66-70 7 71-75 8. 76-80 17 81-85 14 86-90 4 91-95 96-100 3 (EX)= (IrXm)= Мean Median…

A: Given information: Class interval F 61 to 65 5 66 to 70 7 71 to 75 8 76 to 80 17 81 to…

Q: Let A and B be two events on the same sample space. The probability that the event A occurs equals…

A:

Q: D. What can you conclude about whether there was a significant difference between the scores of the…

A: Given:

Q: Boys and girls: The National Health Statistics Reports reported that a sample of 310 one-year-old…

A: Given X1-bar=25.3 X2-bar=24.3 n1=310 n2=286

Q: Construct a 95% confidence interval estimate. How does this change your answer to (b)?

A: (d)

Q: How much is in dollars? They placed dollar sign. Is it 335544.32 or 33554432 or 33,554,432. That is…

A: Frequency is the number of times an observation can occurred. It is also known as count. Fundamental…

Q: e. Is the requirement that the expected frequency in each cell is 5 or greater satisfied? Explain. O…

A: Given that We have to select the correct answer:  e. Is the requirement that the expected frequency…

Q: A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The…

A: Introduction:  Z-test:  The Z-test is the large sample test that is used to test the equality of two…

Q: Let R and W be the events that a day is rainy and windy respectively. In a specific city, during a…

A:

Q: A significant test gives a P-value of 0.04. Which of the following may we conclude? reject the null…

A:

Q: t has been observed that the average number of accidents t s 3 per week. Find the probability that:…

A: Average number of accidents on an assembly line is 3 λ=3

Q: Robin who is studying the tensile strength of a steel alloy intended for use in golf club shafts…

A: For the given data Perform z test for one population mean

Q: A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The…

A: The following information has been provided.  Hypothesized population mean = 7.00 Mean = 659 Sample…

Q: Salaries of 33 college graduates who took a statistics course in college have a​ mean, x​, of…

A:

Q: Joseph and Diana scored 32 and 23, respectively, in the entrance examination for Senior High School.…

A: SInce you have posted a question with multiple subparts, we will solve first three subparts for you.…

Q: b. What is the value of the observed test statistic associated with the test? O x? 6.251 O x? =…

A:

Q: In a class of 20 students of computing, 9 are female and 11 are male. The results of first-year JAVA…

A: The provided information is x x2 48 2304 49 2401 49 2401 30 900 31 961 32 1024 35…

Q: 14. The weights of students in a class as given below. Their mean weight is 54.64. Find the missing…

A:

Q: Bivariate data for the quantitative variables x and y are given in the table below. These data are…

A: The provided information is x y xy x2 10.1 10.0 101 102.01 1.5 1.6 2.4 2.25 5.9 6.6 38.94…

Q: A survey of 10 students was conducted to investigate the amount of time they spend on social media…

A: ''Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: "At a certain college, it is estimated that fewer than 47% of the students have cars on campus, and…

A:

Q: Consider the graph below. Marriage and Divorce Rates (U.S.) 14 |Marriage |Divorce 12 10 Year Which…

A: Estimate is the information about the sample data. Sample mean is the best estimate of the…

Q: On your answer sheet, give one situation where each of the sampling methods is being applied.…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted.....…

Q: 2. A coin is dropped from a height of 1.0000 m for 10 times. The amount of time required to reach…

A: Given information: Height from which coin is dropped=1 mNumber of times coin is dropped=10

Q: 2. A marine biologist claims that a harbor seal's average dive time is at least 5.8 minutes. A…

A:

Q: town council commissioned a random sample of 85 households to estimate the number of four-wheel…

A: From the given information we find the estimate the number of four-wheel vehicles per household in…

Q: 16-20. The Philippine constitution calls for 16 representatives to be chosen from these cities. The…

A: Solution: From the given information, number of representatives to be chosen is 16. The given data…

Q: b) Given the following data: Month Sales Month Sales July August September 38.0 October November…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: college graduates is $25,450. Suppose that that distribution is normal and that the standard…

A:

Q: For numbers 9 and 10: Nathan, a friend of Jonard, wants to predict the petal length (plength, cm) of…

A: From the given output, the regression equation is y' = 3.844 + 1.125 pwidth  - 0.046 slength

Q: 1. The incidence of cancer among phosphate mine workers and their exposure to radiation was…

A:

Q: Shirts

A:

Q: a. Calculate the Pearson correlation coefficient and regression line based on the data below. b.…

A: Given: Kilometer ran(X) Time (Y) 10 90 10 60 16 150 16 90 21 160 21 180

Q: Using the pairs of values for all 10 ​points, find the equation of the regression line. b. After…

A: Given data points: (1, 7), (2, 7), (3, 7), (1, 8), (2, 8), (2, 8), (3, 8), (1, 9), (2, 9), (3, 9)…

Q: layer of a winning is 1/3. Given that the game is played i. The probability that the player has…

A: The game is played 6 times; n=6 The probability of winning is 13