Company A uses a new production method to manufacture aircraft altimeters. A simple random sample of new altimeters resulted in errors listed below. Use a 0.05 level of significance to test the claim that the new production method has errors with a standard deviation greater than 32.2 ft., which was the standard deviation for the old production method. What is the test statistic y. rounded to two decimal places? -43 77 -20 -75 -44 15 16 55 -7 -53 -108 -108 O A. 1185.68 OB. 0.63 C. 36.82 n 20 13

Q: Based on the regression equation (second image), estimate the CGPA for a student who spends 30 minut...

A: We are given regression equation is  y=3.5364+0.0242 X Where y=GPA and x= Hours spend for study  

Q: If the RV X follows N(0, ơ), find the density function of Y = aX², using the characteristic function...

A:

Q: 2. Please find the following: X-BAR (sample mean), b. "S" (sample standard deviation, +/- 1, 2 and 3...

A: For the given data Find mean,s.d,variance,draw bell curve

Q: The geometric mean and harmonic mean of two observations are respectively 18 and 10.8. Find the obse...

A:

Q: The following table gives the distribtution of weekly income of 160 families in a town : Weekly Inco...

A:

Q: You are interested in how uniform the lengths of socks are that are produced at a factory. You measu...

A:

Q: Use the Monte Carlo method to estimate the following. 1./o еxp(еxp(x)) dx 2. E(N) where N is defined...

A: @solution::::

Q: What cse the odds hat the tirst Car to leaue the lot win be either a ToyGta a Honaa a a dissian ?

A: HERE TOTAL 25 cars data are given here use basic probability and odds probability =  #favourable out...

Q: A discrete random variable X can assume the following values, 42, 44, 46, 48, 50. Its probability di...

A: X 42 44 46 48 50 P(X) 0.3 a 0.2 0.1 0.15  

Q: 2. What is the coresponding area under the standard notmai curve it the z-score is 0.700 A. D.0279 3...

A:

Q: An independent research was made asking 500 people about their bank deposits. Using the data in the ...

A: Mean= Σxini/ Σ ni =(750*96+2500*107+3000*130+6000*89+12500*78)/500 = 4477 x̄= 4477

Q: From the following data, obtain the two obtain the regression equations by taking deviations from th...

A:

Q: D. Construct the probability distribution for each discrete random variable. 1. Let W be the square ...

A:

Q: Inorganic phosphorous is a naturally occurring element in all plants and animals, with concentration...

A: CI=(x̄1 - x̄2) ± ME

Q: What is the 70th percentile? Score f 25 2 23 4 21 3 19 5 17 3 15 2 12 1

A: Percentile : A k-th percentile (percentile score or centile) is a score below which a given percenta...

Q: Use technology to construct the confidence intervals for the population variance σ2 and the populati...

A: We have given that,  Sample variance (s2) = 19.36, sample size (n)=25 and confidence level (c) = 99%...

Q: Calculate 5-yearly and 7-yearly moving average of the data given below t

A: HERE FOR 5 YEARLY MOVING AVERAGE Ft = At-5+At-4+At-3+At-2+At-15   and for 7 yearly moving average Ft...

Q: Find the characteristic function of the Poisson distribution and hence find the values of the first ...

A:

Q: der “Providing a Public Good under Incomplete Information" -lecture notes.) If c, and c, have the fo...

A: *Answer:  Given that There are 2 consumer C1 and C2 C1 has 2 strategy and C2 has 2 strategy 2 public...

Q: The accompanying data are the shoe sizes and heights​ (in inches) of 14 men. Find the equation of th...

A: Given data, X Y X*Y X*X 8.5 66.0 561 72.25 9.0 69.0 621 81 9 67.5 607.5 81 9.5 70.5 669.7...

Q: A box contains 2" tickets of which nC, tickets bear the number r (r= 0, 1, 2... n). Two tickets are ...

A:

Q: An inventory study determines that, on average, demands for a particular item at a warehouse are mad...

A:

Q: Let X,, X2, ... , X, be i.i.d. standard normal random variables, i.e., with mean 0 and variance 1, a...

A: Given that  We have to find that  Using the moment generating function technique to show that the r...

Q: A fot is known to contain 2 defectives and 8 non-defective items. If these items are inspected at ra...

A:

Q: 4. A quant is instructed to investigate the relationship between the size of a bond issu and its tra...

A: Since you have posted multiple questions, as per our guidelines we have provided answer for first qu...

Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing t...

A:

Q: What is the positive predictive value (PPV) of the pharmacist's exam?

A: Here given A pharmacist examined a population of 1,000 adults in an attempt to diagnose hypertension...

Q: (2) Ip xyl S1 or Cxy s0,0, Preoue the tollowing propedty

A:

Q: Example 3-47. It is 8 : 5 against the wife who is 40 years old living till she is 70 and 4:3 against...

A: Let A be the event for wife living for 30 years  B be the event for husband living for 30 years   

Q: A pharmaceutical company conducted a study to test the effectiveness of its new anti-depression medi...

A:

Q: A population has a mean μ=80 and a standard deviation σ=8. Find the mean and standard deviation of a...

A:

Q: A manufacturing company regularly conducts quality control checks at specified periods on the produc...

A: We have given that  Number of trials n=10 Success of probability p =0.03 X~binomial (n,p) NOTE:- Acc...

Q: The average math SAT score is 522 with a standard deviation of 112. A particular high school cla...

A:

Q: Records in the country show that six out of 10 convicted offenders were reconvicted 10 years after b...

A: Parameter : In a statistics theory, the parameter is a constant numeric value and it describes about...

Q: r.s Suppose X Be(p) of size n. Look for an UMVUE for p. r.s Suppose XN (µ, o²) of size n. Look for a...

A:

Q: Please help me understand the concept of hypothesis testing and all the important factors that shoul...

A: Given: Dynamic Strength 10 2 12 3 8 5 5 4 6 3 7 6 9 5 10 4 11 2 9 1

Q: Four typists take 15, 10, 6 and 5 minutes respectively to type a letter. Determine the average time ...

A:

Q: A certain university has 12 vehicles available for use by faculty and staff. Four of these are vans ...

A: We have given that  Number of vans = 4 Total number of vehicles = 12  

Q: On each of four days next week (Monday thru Thursday), Dan will shoot five free throws. AS- sume tha...

A: Solution-: Given: Number of throws=n=5 , probability of success p=0.74 We find (a) P(X=3)=? (b) P(Me...

Q: The following data relate to the prices and quantities of 4 commodities in the years 2012 and 2013. ...

A:

Q: Calculate Semi-Inter-Quartile Range and its Co-efficient of Q.D. from the following Vata : Marks 0-1...

A:

Q: If, based on a sample size of 850​, a political candidate finds that 479 people would vote for him i...

A: Given that  n=850 , X=479 Find 95​% confidence interval for his expected proportion of the​ vote?  

Q: A manufacturer of bicycle tires has developed a new design which he claims has an average lifespan o...

A:

Q: Illustration 33. The heights of mothers and daughters are given in the following table. From the two...

A: Given: x (mother) y (daughter) 62 64 63 65 64 61 64 69 65 67 66 68 68 71 70 65

Q: Theorem 3-20. If A, B and C are randoni events in a sanple space and if A, B and Care pairwise indep...

A:

Q: You are interested to see if there is a difference in the student’s CGPA for the three different pro...

A: Given information: Programme GPA BB05 3.67 BB08 3A 3.9 BB02 3.28 BB05 3.29 BB05 3.32 ...

Q: The Ice Chalet offers dozens of different beginning iceskating classes. All of the class names are p...

A: From the provided information, In a class there are 66 girls and 14 boys. Sample size (n) = 66 + 14 ...

Q: What is this sample size now? What religious category is the mode? What percentage are in this categ...

A: Given information: Valid   Frequency Percent Valid Percent Cumulative Percent   No religion 82 ...

Q: The values of aritnmetic mean and standard deviation of the following frequency distfibution of a co...

A:

Q: Number 1: The serum cholesterol levels of a population of 12 to 14 year olds follow a normal distrib...

A: Let X denotes the cholesterol levels of population  X ~ N(162, 28)