1. Analyze and answer the following problems. Evaluate the expression -6 + 19C15. Find the unknown variable in nC5 = 126

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

A: Given data, X 42 44 46 48 50 P(X) 0.3 ? 0.2 0.1 0.15

Q: If a researcher is conducting an secondary analysis study that might not need to have additional app...

A: question: If a researcher is conducting an secondary analysis study that might not need to have addi...

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: What are the confidence intervals for: Mean= 1020 Sd= 30 N=300 α= .01

A: We have given that  Mean= 1020 Sd= 30 N=300 α= .01

Q: Hypergeometric distribution tends to binomial distribution as N → and k =p. %3D

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Q: random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400...

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Q: mong wormen and high school gini States 2011). MMWR 2013;62:pg 9-13. http://www.cdc.gov/mmwr/pdf/wk/...

A: We have given that  Sample size n =9 Sample mean =5.1 Standard deviation =0.42

Q: What is the expected value and variance of flight time?

A: Given that x~u (120 ,140 ) Find Expected value =? Variance =?

Q: Example 3-49. A manager has two assistants and he bases his decision on information supplied indepen...

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Q: Example 5. Calculate the arithmetic average of the following by the direct method : Weekly wages (in...

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Q: the correct arithmetic mean and standard deviation.

A: here old mean = M1 = 20cm and old standard deviation (S1)= 5 cm and given that item 13 was misread a...

Q: College and University Debt A student graduated from a 4-year college with an outstanding loan of $9...

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Q: Richelle Ng is the owner of Ring Marketing. She is considering marketing a new product that will cos...

A: The decision tree based on the information is given below: Decision models that help decision-makers...

Q: was given to a group of students. The grades and gender are su beliow 8CTotal 20 A. Walle 14 13 47 1...

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

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Q: The number of arrivals per minute at a bank located in the central business district of a large city...

A: Given that :  a..We have to find the expected number of arrivals per minute.. b ...Standard deviati...

Q: The profits of a Company for the last 8 years are given below. Calculate the Range and its Coefficie...

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Q: From the following data, compute price index by using weighted average of price felatives method, Us...

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Q: Please answer the two problem separately and refer to its instructions. Thank you. Problem 1: (I pre...

A: Given information: μ=3.2, σ=0.92

Q: A. A random sample of 64 SAT scores of students applying for merit scholarships showed an average of...

A: We have given that,  Sample size (n) = 64 , average (x̄) = 1400 and standard deviation (s) = 240 The...

Q: Listed below are the amounts of net worth​ (in millions of​ dollars) of the ten wealthiest celebriti...

A: Given data, 247,191,180,158,157,151,151,151,151,146 The sample mean is x=∑xn=168310=168.3 The sample...

Q: ​P(4<x<8​)=​P(4​.5)+​P(5​.5)+​P(6​.5)+​P(7​.5)=enter your response here     B. ​P(5<x<7​)=​P(6​)=ent...

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Q: 'We have conducted a two-sided Z-test to assess the null hypothesis that the mean con- ents of soda ...

A: Given information: The results of a Z test are given.

Q: Example 3.52. (Huyghen's Problem) A and B throw alternatively with a pair of balanced dice. A wins i...

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Q: A car dealer sold 750 automobiles last year. The following table categorizes the cars sold by size a...

A: Definition:  Conditions for the independence of two events A and B: P(A ∩ B) = P(A) P(B) or P(A...

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: Find the 7h decile and 60h percentile from the following data : Wages ( $) 30-40 40-50 50 60 60 70 7...

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Q: Find an interval estimate with a confidence level of (i) 90%, (ii) 95% and (iii) 99%.

A:  here sample mean =x = 20 months population standard deviation = σ =3 months sample size (n) = 64 he...

Q: A certain type of automobile battery is  known to have a lifespan that is normally  distributed, wit...

A: Given data A certain type of automobile battery is known to have a  life span of mean 1100 days and ...

Q: The Central Limit Theorem is important in statistics. Group of answer choices a-The central limit th...

A: We have to define the correct definition of Central limit theorem

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

A: Given the data relate to the prices and quantities of 4 Commodities in the year 2012 and 2013. We ne...

Q: What is the probability that a shower will laast for more than 3 minutes . if a shower has already l...

A: Given: Length of the shower is exponentially distributed with  mean, 1θ=12

Q: The margin of error in a confidence interval does not cover the following errors: Group of answer c...

A: The margin of error in a confidence interval does not cover the following errors:   Group of answer ...

Q: For a data set of chest sizes (distance around chest in inches) and weights (pounds) of eight anesth...

A: From the provided information, Linear correlation coefficient (r) = 0.996 Number of pairs of data (n...

Q: normal, find the 95% confidence interval estimate for the mean of the differences ?d, where d = rati...

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Q: Find the equation of the regression line for the given data. Then construct a scatter plot of the da...

A: The scatterplot is used to see the correlation between two variables (dependent and independent). It...

Q: Q6. A 95% C.I. for µ, the mean of a population of Y was obtained as: [-2.5 , 3.5]. What was the samp...

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Q: If A1, A2, ... , A, are exhaustive and mutually exclusive events associated with a random experiment...

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Q: Let X ~ Poisson(λ). Derive the moment generating function of X and use that to find E(X3)

A: Solution: Let X~Poisson(λ) The probability distribution of X is  P(x)=e-λλxx!    x=0,1,2,3,..  

Q: Every year, the students at a school are given a musical aptitude test that rates them from 0 (no mu...

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Q: Example 5. Calculate Quartile Deviation and its Coefficient from the following data : Weight (in pou...

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Q: Oishi and Schimmack (2010) report that people who move from home to home frequently as children tend...

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Q: Test the significance of the correlation coefficient at α = 0.05 between time spent for studying and...

A: Null Hypothesis: H0: There is no significance of the correlation coefficient  between time spent for...

Q: Listed below are the budgets​ (in millions of​ dollars) and the gross receipts​ (in millions of​ dol...

A: We have given that data  Budget (x)    Gross (y)60    6091    6050    4839    62193    558105    140...

Q: For a sample of 12 offenders convicted of weapons violations, the length of prison sentence in month...

A: The number of data values is 12.

Q: About 5% of hourly paid workers in a region want the prevailing minimum wage or less. A grocery chai...

A: Let X is a radnom variable shows the number of employees out of 285 earn the prevailing minimum wage...

Q: A mechanic sells a brand of automobile tire that has a life expectancy that is normally​ distributed...

A: Given that  A mechanic sells a brand of automobile tire that has a life expectancy that is normally​...

Q: The manager of a credit card firm has recorded the times for a simple random sample of 60 calls made...

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

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