QUESTION 6 Find the standard deviation of the following numbers: 1, 1, 4, 6, 8, 10, 10, 12

Q: 6. Two factories (X and Y) are producing light bulbs. To decide which one produces better products, ...

A: Any assumption about the parameter or probability function is known as hypothesis testing. For the g...

Q: Use the method of least squares to fit a straight line trend and estimate the number of salesmen in ...

A: Here Given  Data for number of salesman in different years Now here x=Year s= Number of Salesman Her...

Q: following may not be an actual observation except for?   Class mark   Mode   Mean   Median

A: Since we know that class mark is the arithmetic Mean of lower limit  and  upper limit of a class    

Q: A random sample of 25 kids were asked about their favorite animated movie and here are their answers...

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Q: given its van a 36.8 miles/gallon (MPG) rating. An independent testing firm has been contracted to t...

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Q: B. Classify each sample as simple random, stratified, or cluster. 6. Every 14th customer entering SM...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: J(y|0) 20 where 0 >0 is a parameter. Use the pivotal method to verify that if 0 < a < 1, then Y Y a/...

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Q: An international car manufacturer offers its best selling model in 6 colors, 2 types of seats (leath...

A: Solution-: Given: Best selling model cars=6 Type of seats (leather or vinyl)=2 number of engine =3  ...

Q: The researcher would like to determine if these data provide convincing evidence that the true mean ...

A: We want to test.  if these data provide convincing evidence that the true mean amount of time volunt...

Q: random sample of 100 families the variances of the savings is one quarter of the variance of the inc...

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Q: Prove that P(A U BUC) = 1- P(A° | B° n C°)P(B© | C°)P(C°).

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Q: (b) Applying the MSE measure of forecast accuracy, would you prefer a smoothing constant of a = 0.1 ...

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Q: The heights of NBA players are normally distributed, with an average height of 6'7" (i.e. 79 inches)...

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Q: A medical researcher wants to compare the pulse rates of smokers and non-smokers. He believes that t...

A: The objective is to test the research's claim at 6% level of significance of given data.

Q: Give 1 example LIFE SITUATION for this sampling methods     1. Cluster Sampling 2. Multi-stage s...

A: Samplings is the technique that used to take sample from the population. There is two type of sampli...

Q: Three hundred students were sampled in the College of Engineering. It was found that: 170 take math,...

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Q: If four cards are drawn from an ordinary deck without replacement, what is the probability that at l...

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY Here 4 cards are drawn from ordinary d...

Q: Let X = (X1, X2)', and X1 and X2 are iid random variables with common pmf f(x\0) = xlog(1 – 0)' wher...

A: The mean is given by E(X)=-∑xθxxln(1-θ)x=1=-1ln(1-θ)∑x=1θx=-1ln(1-θ)(θ+θ2+θ3+......)=-θln(1-θ)(1+θ+θ...

Q: I. Classify the following sets of data as qualitative or quantitative. 1. The colors of houses in a ...

A: Quantitative data: The data which can be expressed as numerically is called quantitative data. Quali...

Q: . 23: Find the correlation coefficient between the income and expenditure of a wage earner and comme...

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Q: Calculate the coefficient of concurrent deviation from the following : X : 60 55 50 56 30 70 40 35 8...

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Q: A manufacturing firm purchases a certain component, for its manufacturing process, from three sub-co...

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Q: Suppose you are testing the hypotheses Ho : p =0.24 vs. p 70.24 with significance level a = 0.29. As...

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Q: Construct the indicated confidence interval for the population mean u using the t-distribution. Assu...

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Q: Two dice, a 8-sided one and a  10-sided one are shaken in a cup then "rolled" onto a table.  How man...

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Q: IT firm HelpTech offers technical support for corporate clients across the country. The number of bi...

A: Given Information: The data represents the number of billed hours in the past 4 years. The objective...

Q: Calculate geometric mean from the following data: 125 1462 38 7 0.22 0.08 12.75 0.5

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Q: Suppose 42 % of the students in a university are baseball players. If a sample of 628 students is s...

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Q: 11. A random sample of 10 sites that are 2 meters square is selected at an elevation of 500 feet. An...

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Q: a.  A coin is flipped 5 times, find the probability of getting exactly 4 heads.

A: As per company guidelines I solved only  First questions..thank you 

Q: GIVEN X f Xm<cf 35 - 416 42 - 485 49 - 55 12 56 - 62 10 63 - 69 12 70 - 767 77 - 835 84 - 903

A: The objective is to find mean,median ,mode. multipart comment.   

Q: Students attending an experimental school are classified by grade (grades 6 through 12),  yes/no as ...

A: The students are classified by grade from grade 6 through to 12.

Q: Customers arrive at the service counter at the rate of 15 per hour. What is the probability that the...

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Q: stem and leaf plot? Also include its median.

A: Here Given total number of data =20

Q: what is the probability that 2 will have no checkup, 3 will have 1 checkup, and 2 will have 2 checku...

A: The probability that a person will have 0, 1, or 2 dental checkups a year is 0.24, 0.51, and 0.25 re...

Q: Calculate Karl Pearson's coefficient of skewness from the following data : Profits No. of Cos. Profi...

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Q: QUESTION 1 Consider the following ARMA model for {y,}: ',=a,+ 2 j=1 +E,+ l=1 where {e) is the residu...

A: Please note that as per our guidelines if multiple questions are posted we can answer the first ques...

Q: 2. For a fully continuous 10-year Heferred life annuity of 1 per year on (x), you are given: i) Prem...

A: Given: Deferred period = 10 μ=0.01δ=0.06 Premiums payable on first 10 years  

Q: Women's shoe sizes are (approximately) normally distributed, with an average size of 8.076 and a sta...

A: Given,mean(μ)=8.076standard deviation(σ)=1.468sample size(n)=10

Q: Determine which candidate will win using the Borda count method. ​   Rankings for Club President Fr...

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Q: A new sneaker claims that it can make male athletes jump higher. A sample of 32 male athletes were a...

A: Given'  sample size n=32  sample mean xbar=1.72  standard deviations=0.81  then to find lower limit ...

Q: oỹ a group of 12 students in two examinations A and B. Calculate the correlation coefficient between...

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Q: In a recent poll, 360 people were asked if they liked dogs, and 92% said they did. Find the margin o...

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Q: Anne has 4 friends and 5 coworkers. Each day in the year 2019, Anne talked to some number of friends...

A: Anne has 4 friends and 5 co-workers. On any given day, she can talk to atleast 1 but never 4 friends...

Q: A data set lists weights (Ib) of plastic discarded by households. The highest weight is 5.24 Ib, the...

A: The mean is 2.208 lb and the standard deviation is 1.971 lb.

Q: 10. A random sample is selected from a normal population that has a u = 40 with o = 8 and has a mean...

A: Given,mean(μ)=40standard deviation(σ)=8sample size(n)=4

Q: 1.A factory has a machine that dispenses 80ml of fluid in a bottle. An employee believes the average...

A: Given Sample size, n=40Sample mean, x¯=78Sample sd, s=2.5CL=95%

Q: If N = 150, (A) = 93, (B) = 112, (C) = 80, (BC) = 20 and (Ay) = 43, find the greatest and the least ...

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Q: Previous results indicate that 1 in 1000 transistors are defective on average. Find the probability ...

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Q: 2. Suit Sales The number of suits sold per day at a retail store is shown in the table, with the cor...

A: X 19 20 21 22 23 P(X) 0.2 0.2 0.3 0.2 0.1