Construct a 95% confidence interval for the population mean for sample A. (Type integers or decimals rounded to two decimal places as needed.)

Q: A manufacturer buys computer chips from a supplier. The supplier sends a shipment containing 10% def...

A: Given,n=13p=0.1A random variable X~Binomial(n=13 , p=0.1)P(X=x)=13x0.1x1-0.113-x ;  X=0,1,2,...13

Q: The sale of a company rose from $ 60,000 in the month of August to $ 69,000 in the month of Septembe...

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Q: According to a random sample taken at 12 A.M., body temperatures of healthy adults have a bell-shape...

A: According to the Chebyshev's theorem, 1-(1/k²) of the observation fall within k standard deviation o...

Q: What is the correlation between happiness and health?

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Q: Situation 3: Professor Rojas wanted to find out if his students' vocabulary skills correlate signifi...

A: Given information: Student Number Vocabulary skills Writing skills 1 37 83 2 24 75 3 25 ...

Q: the heights of 200 plants in a garden follow a normal distribution with mean of 72.3 cm with a stand...

A: Formula : Z =(X - μ)/σ

Q: Suppose you have a distribution with a mean equal to 100, median equal to 75, and mode equal to 50. ...

A: Given that  Mean =100 Median =75 And Mode=50

Q: An airline company is interested in improving customer satisfaction rate from the 65% currently clai...

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Q: he probability that a house in an urban area will be burglarized is 5%. A sample of 50 houses is ran...

A: Given,n=50p=0.05A random variable X~Binomial(n=50 . p=0.05)P(X=x)=50x0.05x1-0.0550-x   ;  x=0,1,2,.....

Q: A man has five coins, one of vwhich has two heads. He randomly takes out a coin and tosses it three ...

A: The man has five coins and one of them has heads on two sides, rest are fair coin. He randomly takes...

Q: 6) Show that, if X and Y are independent random variables, such that E|X| < co ,and B is an arbitrar...

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Q: 17. In constructing a/an . class frequencies are on the vertical axis. In this presentation of data,...

A: Here we have to find which diagram suits the given information..

Q: The co-efficient of value correlation between two prices of a company is + 0.27, if the sum of squar...

A: Note: the given values in this question is not correct that is why the value of n is not exact. 

Q: Q10. Xis a normally distributed variable. Given the following probabilities find the E(X). Pr(x 20)=...

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Q: Calculate mean from the following series and apply the iers accuracy check. Class Interval Frequency...

A: We know that  Mean = sum of all observations/total number of observations 

Q: Q. 4. Fit a straight line from the following data Years : 1989 1990 1991 1992 Sales (1000) : 12 15 1...

A: Given a data on years and sales, we have to fit a straight line from the given data. 

Q: 1. Assume p = 100 and 6 = 16 1.1 What is the probability of selecting at random from the general pop...

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Q: 2-89. If F = {3501 - 250j – 450k} N and cable AB is 9 m long, determine the x, y, z coordinates of p...

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Q: You may need to use the appropriate technology to answer this question. Consider the experimental re...

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Q: Determine the area under the standard normal curve that lies to the right of 0.61.

A: We have given that.   X~N( 0 , 1 )  for standard normal.    μ =0 , ? =1   Z-score =( x - μ )/?  

Q: The sample mean calculated from data on the amount spent by 64 customers for lunch at a major Housto...

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Q: Suppose that E and F are two events and that P(E) = 0.5 and P(F|E) = 0.2. What is P(E and F)? P(E an...

A: GivenP(E)=0.5P(F|E)=0.2

Q: For questions 1 and 2, sketch an appropriate graph as part of your solution. A college entrance exam...

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Q: An online retailer would like to know whether the proportion of customers who visit the site and mak...

A: Given that  Population proportion=50%  

Q: You may need to use the appropriate appendix table to answer this question. Suppose that the mean da...

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Q: Question 3: A partial tree diagram is provided. The missing probabilities are indicated by lower cas...

A: Given tree diagram ,

Q: A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 68 specim...

A: We have given that,  Sample mean (x̄) = 39.3, standard deviation (s)= 7.3 and sample size (n) = 68 T...

Q: ta) Find the mode of the following distrihution 1. 4. 3. 5. 6. 3, 3. 2, 4, 3. 4, 3, 3. 4. 4, 2. 3 (h...

A: Frequency table for the given data, Observation Frequency 2 2 3 7 4 5 5 1 6 1 7 1 ...

Q: In a class of 75 students, 15 were considered to be very intelligent, 45 as medium and the rest belo...

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Q: Find the area between z= -1.36 and z=1.50

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Q: TOPIC: Problem Solving on Permutation 1. Analyze and answer the given questions. a. How many ways ...

A: There are 12 books.  Formula: nCr= n!/r!*(n-r)! We have 12C2= 66 ways of choosing 2 books for A. The...

Q: In hypotheses testing there is always a possibility that the decision we make is wrong  as we are m...

A: Rejecting H0 when H0 is true is referred to as a Type I error. (a). A type I error occurs when a res...

Q: Q4. TheBinomial random variable, T ~ B(20,0.4). Find the Pr( T = 8). A. 0.12 В. 0.18 С. 0.36 D. 0.48...

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Q: Calculate standard deviation from the following data taking eviations from assumed mean 65: Harks : ...

A: We have given that data  X Frequency 50 6 55 10 60 14 65 9 70 2 75 5 80 18 Assum...

Q: It is known that the mean diameters of rivets produced by two firms A and B are practically the same...

A: Given that  For firm A  Sample size=22 Standard deviation =2.9 For firm B  Sample size =16 Standard ...

Q: Rush

A: Given that  provided: Hypothesized Population Mean (\mu)(μ) = 1414 Population Standard Deviatio...

Q: a) Compute the probability that two randomly selected chips are defective using conditional probabil...

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Q: A study of B.A. (Hons.) Economics examination results of 1000 students in 1990 gave the mean grade a...

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Q: The following table gives the cost of household’s electricity bills during the spring months, in dol...

A: We have given that data . I want to find mean and standard deviation.  Mean =sum of observations / t...

Q: oughly, speaking, we can use probability density functions to model the likelihood of an ent occurri...

A: Solution

Q: Q. 6. Calculate quartile deviation and its co-efficient from the data given below : Age of years : 1...

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Q: Situation 2. Dr. Romero observed the level of motivational behavior of his students and tried to fin...

A: Given information: As per guidelines we will only answer the first three subparts, please repost oth...

Q: Listed below are amounts (in millions of dollars) collected from parking meters by a security servic...

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Q: Assume that a sample is used to estimate a population proportion p. Find the 90% confidence interval...

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Q: b. Babies who are born on or before 298 days are considered premature. (Round to the nearest integer...

A: The mean is 267 and the standard deviation is 15.

Q: 1. Between z = 0 and z = 1.63 2. Between z = 0 and z = -1.78 3. Between z = 1.56 and z = 2.51 4. Bet...

A: 1) The z values are 0 and 1.63.

Q: It is known that the mean diameters of rivets produced by two firms A and B are practically the same...

A:

Q: If X is a Poisson variable such that P(X=2)= 9P(X= 4) + 90P(X= 6), find the mean and variance of X.

A: Given,A random variable X~Poisson(λ)P(X=x)=e-λ λxx!  ;  x≥0

Q: Which of the following is true? The sum of the probabilities of collectively exhaustive events must...

A: The probability is a chance, it can occur any outcome of the random experiment. The probability of a...

Q: Q. 8. Calculate co-efficient of correlation from the followine results: N= 5 Ex = 80 Ey = 130 E(x-5)...

A: