The following data show defective articles produced by 4 machines: Machine: Production time: A В 1 1 2 3 No. of detectives: 12 30 63 98 Do the figures indicate a significant difference in the performance of the machines?

Q: find the value ofk

A: Here use formula of mean 

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A:

Q: Example 2 Find Range in the following frequency distribution: 3 4 5 6 7 8 12 10 4 2. %24

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Q: A running coach wanted to see whether runners run at a different speed after eating spaghetti the ni...

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Q: A random sample of 250 preschool children in a local suburb revealed that only 232 had been vaccinat...

A: Given : X=232 n=250   Note :As per guidelines only first 3 subparts have been answered if you need a...

Q: When we draw conclusions from data, we usually state them in terms of probbailities. Express a 95% c...

A: Here Confidence Interval gives the range of the population parameter .And It is found using sample s...

Q: (b) Compute the correlation coefficient between the price of eggs and the price of milk. Round the a...

A: Define the variable dozen eggs as x and the variable gallon of milk as y.

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Q: When the F test is used for ANOVA, the rejection region is can be both tails. in the area of a-1. al...

A: We have given that,  When the F test is used for ANOVA, the reaction region is  ?  We have to check ...

Q: 4. at least z =-127 5. at most z = 1.39 6. between z = -1.29 and z - 0.88

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Q: To test the equality of variances, you would use a tes O chi-square O F

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Q: The operations manager of a musical instrument distributor feels that demand for a particular type o...

A:   By using linear regression, a)  sample mean (x̄) = Σx/n  = 330/6 = 55 sample mean (ȳ) = Σy/n = 69...

Q: Example 3 Find Q.D. in the following frequency distribution: 2 3 4 5 6 10 18 40 25 10 2. 00

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Q: Suppose that a random variable x has a uniform distribution to the integer 10...20. Find the probabi...

A: * SOLUTION :-   

Q: 7. greater than z= 0 8. to the left of z= 1 9. between z = -2.34 and z = 1.57 10. between z = 0.32 a...

A: Here for Standard normal curve we use z score table for finding  z score  area...

Q: For the following data 2 5 10 12 15 14 15 (i) Find line of regression of Y on X (ii) Estimate Y for ...

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Q: A researcher is going to conduct an experiment in order to compare two drugs – a new drug and an old...

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Q: You are conducting a study to see if the probability of a true negative on a test for a certain canc...

A: GivenThe null and alternative hypothesis is H0:p=0.75H1:p>0.75sample size(n)=317No.of successes(x...

Q: (a) What is the probability that exactly 19 people come in and get diagnosed with some form of cance...

A: Here AS PER POLICY I HAVE CALCULATED 3 subparts kindly REPOST for remaining  The average number of p...

Q: Direction: Answer the null and alternative hypothesis, it should be in word or sentence form. 1. For...

A: For the given statements, we need to construct the Null and Alternative Hypothesis for each statemen...

Q: Example 1 Draw a frequency curve for the following data. C. I. : 10-20 20-30 30-40 40–50 Frequency: ...

A:

Q: Assume X,. X,.... form a sequence of independent RVs, each uni- formly distributed on (0, 1). Let N=...

A: Consider X1,X2,.... as a sequence of independent random variables which is uniformly distributed wit...

Q: A random sample of six music students played mistakes in music each student made was record times, t...

A: Applying a paired 't' test, sample size,n=  6 Mean (d̄)  =Σd/n                = 21/6               ...

Q: Output 1 NOVA ource of Variation p-value 8.304985 0.001474 3.238867 af MS F F crit etween Groups 212...

A:

Q: The sum of squares measures the variability of the observed values around their respective treatment...

A: In analysis of variance, total sum of squares is divided into sum of squares between and sum of squa...

Q: e in each Big Chip cookie elects a sample of 101 co umber of chocolate chips as a mean of 13 2 and a...

A: Given, sample size (n) = 101 sample mean (x̄) = 13.2 sample standard deviation  (s)  = 1.3 significa...

Q: Repeated measurement from the same individuals is an example of data collected from two related popu...

A: Solution:- Repeated measurements from the same individuals is an example of data collected from two ...

Q: 2. u = 26, o = 4.5, n = 80, and x = 28.3 %3D %3D

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Q: Find the probability that a man asked to form a two digit number out of 2, 3, 5, 7, 9 would form 79 ...

A: a) Repetition is not allowed. There are 5 numbers. Since, repetition is not allowed, first digit hav...

Q: In proof testing of circuit boards, the probability that any particular diode will fail is 0.01. Sup...

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Q: I have gotten the wrong answers on this question if you could kindly help out with the correct answe...

A: Note: According to Bartleby guidelines expert, solve only one question and maximum 3 subpart of the ...

Q: Example 3-64. A bag contains 17 counters marked with the numbers 1 to 17. A counter is drawn and rep...

A:

Q: C. Expand the following sigma notation. 1. 20 i=8 2. 13 x + 4 i=2

A:  

Q: Example 5. In the bending of an elastic beam the normal stress y at distance x from the middle secti...

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Q: Let X1, X2, . .., Xn be a random sample from a population with a pdf a+2022 (a+ 2021) () ; х > 0, а ...

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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: 19. (a) The sum of 50 observation is 500 its sum of squares is 6,000 and median 12. Find the coeffic...

A: Given that, (a) The sum of 50 observations is 500 its sum of squares is 6000, and the median is 12. ...

Q: Weekly wages of labours are given below. Calculated Q.D and Example Coefficient of Q.D. Weekly Wage(...

A:   X Frequency 100 5 200 8 300 21 400 12 500 6  

Q: A computer while calculating the correlation coefficient between the variables X and Y obtained the ...

A:

Q: answer the following statistic questions. what is the difference between sigma o and s? how can you ...

A: Population Vs Sample Population A population is an entire group that you want to conclude about. Th...

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Q: Government funding: The following table presents the budget (in millions of dollars) for selected or...

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Q: Let X1, X2, ..., Xn ~ exp(A) be a random sample. Show that X is sufficient for 1/A.

A: Given:  X1,x2,.....xn from exponential distribution with parameters lambda  Then to show that xbar i...

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

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Q: Let X be a Poisson random variable such that 2 P(Xe 4P(X 1) +5P(X = 2) %3D 2020/03/om (a) Find its m...

A: Given that    We have to find  a..We have to find the mean and variance of X  b .. Probability that...

Q: Example 3-64. A bag contains 17 counters marked with the numbers 1 to 17. A counter is drawn and rep...

A:

Q: -- Students of mathematics in a large university are given a percentage mark in their annual examina...

A: