10. The following table gives the aptitude test scores and productivity indices of 10 workers selected at random : Aptitude scores Productivity index Estimate (i) the productivity index of a worker whose test score is 92. (ii) the test score of worker whose productivity index is 75. 60 62 65 70 72 48 53 73 65 82 68 60 62 80 85 40 52 62 60 81

Q: For a redundant system with n independent identical components with constant failure rate 2, show th...

A:

Q: i) Let X be a random variable with the PDF f(x: 0) =e-(1-", 00, S(x; A, jµ) = { ^†" -e/", x0 and u> ...

A:

Q: Which line is the line of best fit? a) b) c) O d)

A: Option (d) is correct. Because, A line through a scatter plot of data points that best expresses th...

Q: To find the mean, you take the sum of all the survey responses and then divide by what? Additional M...

A: Here given,  The table shows the mean commute time (in minutes) by state for workers at least 16 yea...

Q: By arranging the following information in a nine-square table, find the frequencies of the remaining...

A:

Q: A stockist has 20 items in a lot. Out of which 12 are non-defective and 8 are defective. A customer ...

A:

Q: Lower limit: Upper limit:

A: here given 15 sample data n=15 df =n-1 =14 t critical for 99% confidence level and df =14  t-critica...

Q: ed. The tabie below records the frequency of the number of tries to get a heads up on the # of tries...

A: We have given that the table represents the records the frequency of the number of tries to get a he...

Q: Using the TI-84 calculator, find the area under the standard normal curve that lies between the foll...

A:

Q: In one city, the average amount of time that tenth-graders spend watching television each week is 23...

A: GivenMean(x)=21.9population standar deviation(σ)=3.1sample size(n)=95α=0.005

Q: Sample distribution of variance follows a Chi-Square distribution with n-1 degrees of freedom True O...

A: Chi square distribution is a sampling distribution of variance.

Q: Given that the switchboard of consultant's office receives on the average 0.9 calls per minute, find...

A:

Q: A not A total В 0.55 not B 0.55 0.34 total 1

A:

Q: (b) Find the probability that a person would wait for 4 days. The probability that a person would wa...

A: We have given that Number of days Frequency 0 28 1 437 2 263 3 75 4 16 5 11 Total 8...

Q: In an experiment, college students were given either four quarters or a $1 bill and they could eithe...

A: Given data is   Purchased Gum Kept the money Total Students Given four Quarters 30 13 43 stud...

Q: A new computer has a constant failure rate of 0.02 per day (assuming continuous use) and a constant ...

A:

Q: 67. Calculate the geometric mean of the following data : Wages 55-65 65-75 75-85 85-95 95-105 105-11...

A:

Q: 6.1. A manufacturer of components for automobile transmissions wants to use control charts to monito...

A:

Q: (a) the expected number of engineers waiting to use one of the terminals and in the computing centre...

A:

Q: 7. Many businesses have music piped into the work areas to improve the environment. At a company an ...

A: Given: Country Rock Classical 857 791 824 801 753 847 795 781 881 842 776 865

Q: Suppose that the duration of a particular type of criminal trial is known to be normally distributed...

A: Given: Mean = 24 Standard deviation = 6  

Q: Find the mean

A: Here given, p = 0.2 n= 8

Q: Determine each of the following areas and show these graphica .. above z = 1.46 2. below z = -0.58

A: 1) P(Z>1.46)=? =1-P(Z<1.46) =1-0.9279 =0.0721 Graph: z-table for reference:

Q: The prediction interval for Xn+1 will always be longer than the confidence interval for u

A: Prediction interval : A prediction interval is a set of values within which a response is anticipate...

Q: 1. Aggregate risk S comes from compound Poisson random variable with N- P(200) and individual claims...

A:

Q: GAME 5 Player B B1 B2 Player A A1 7, 3 | 5, 10 A2 3, 8 | 9, 6 In Game 5 above, in the Nash equilibri...

A: There exists a nash equilibrium in mixed strategies  Player B will play left to right with probabili...

Q: An office machine has a time to failure distribution that is lognormal with a shape parameter s = re...

A:

Q: You wish to test the following claim (Ha) at a significance level of a = 0.05. H.:1 = 42 Ha: 1 42 Yo...

A: If the population standard deviations of two groups are not known but assuming the variances are equ...

Q: The prediction interval for Xn+1 will always be longer than the confidence interval for µ

A:

Q: encourage members of the public to donate blood. The following data were collected ast year on the m...

A: Here given data for x and y We have to find correlation equation and correlation coefficient and ans...

Q: A telephone company is planning to install telephone booths in a new airport. It has established the...

A:

Q: Assume that the fat content of chocolate donuts is normally distributed with population standard dev...

A:

Q: Refer to the data set 3.94, 1.47, 2.06, 2.36, 3.74, 3.43, 3.78. Find the 2nd decile. B. 2.06 C. 2....

A: Arrange the given data in ascending order1.47 , 2.06 , 2.36, 3.43 , 3.74 , 3.78 , 3.94sample size (n...

Q: 2. In an attempt to reduce the number of man-hours lost as a result of hospital accidents, a large h...

A: Given that :    We have to find d..What statistical test we use in the given problem... e..The Crit...

Q: 13. From an experiment, we get the following values of a function O(x). 1 2 -4 f(x) 3 -5 4 Represent...

A:

Q: Wé wish tó éstimaté the mean price of gasoline (per gallon) at gas stations across Saskatchewan, ass...

A:

Q: 67. Calculate the geometric mean of the following data : Wages 55-65 65-75 75-85 85-95 95-105 105-11...

A:

Q: I. Expand the following: 10 1. Ž (x, + y,)? 2. 11 10B, 3. 728 II. Write in summation notation. (2-24...

A: We have to expand terms for mentioned questions,  We will use rule of summation. 

Q: An instructor for Probability & Statistics wants to investigate if a new teaching technique is more ...

A:

Q: Pain: A recent survey asked 830 people how many days they would walt to seek medical treatment if th...

A: Required probability is P(person wait for 2 days)

Q: Construct a stem-and-leaf display, given the following data from a sample of midterm exam scores in ...

A: Given that,       number of samples(n)=9 The data are given as:       50  65  90  70  90  50  50  89...

Q: The first three moments of a distribution about the value 2 of.the variable are 1, 16 and – 40. Show...

A:

Q: There are two series of index numbers, P for price index and S for stock of a commodity. The mean an...

A: Given that,       r=0.4 The mean and standard deviation of P is given by      P¯=100      sP=8 The m...

Q: From a pack of 52 cards, three are drawn at random. Find the chance that they are a king, a queen an...

A: In question, Given that three cards are randomly selected from standard card of deck of 52 cards. Th...

Q: random sample of 100,000 credit sales in a department store showed an average sale of $87.25. From p...

A:

Q: Confidence intervals on the variance is very sensitive on the normality of the data while the confid...

A: Confidence interval of variance assumes normality of samples, and is very sensitive to the sample di...

Q: I Find the variance and standard deviation. Show your solution. 2. 1 2 3 4 P(x) 0.11 0.22 033 0.44 0...

A: E(X)=∑X.P(X)E(X)=0×0.11+1×0.22+2×0.33+3×0.44+4×0.55E(X)=0+0.22+0.66+1.32+2.2E(X)=4.4

Q: Determine the probability P (16 or more). Round the answer to at least three decimal places.

A: Given  n=18, p=0.9  P(X≥16)=?   

Q: 4. Fuel costs are important to profitability in the airline business. A small regional carrier has b...

A: One way ANOVA : The unidirectional analysis of variance (ANOVA) is performed to visualize if there s...

Q: Find each of the shaded areas under the standard normal curve using a TI-84 calculator. Round the an...

A: