2. Suppose two fair six-sided dice are rolled 1000 times, with their sum recorded. Use an appropriate normal distribution to estimate the probability that a sum greater than or equal to 9 is rolled between 150 and 180 times.

Q: The mean and standard deviation of a binomial probability distribution with n=25 and p = 0.20 are

A: p = 0.2 n = 25

Q: Suppose in a sample one number from a standard normal distribution, what is the probability it will…

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Q: If a typist makes errors at random at a mean rate of 3 per page, then the probability of making at…

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Q: A soft drink machine is regulated so that it discharges an average of 200 ml per cup. If the amount…

A: given information is  Let X represent the amount of drink distributed. μ =200 σ=15 a) P ( X > 224…

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A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

Q: 2. In a study of the life expectancy of 400 people in a certain geographic region, the mean age at…

A: Given that  μ= 70 , σ= 5.1 , n= 50 Formula for Z-score Z=(x̄-μ)/(σ/√n)

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Q: Consider a uniform distribution from 1 to 8.  What is the probability that the random variable has a…

A: From the provided information, Let X be a random variable which follows uniform distribution. X ~U…

Q: (d) The number of errors in a text book follows a Poisson distribution with mean of 0.01 errors per…

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Q: According to a study, 39% of adult Americans believes that marriage is now obsolete. A random sample…

A: Given Information p = 0.39 n = 500 Sampling Distribution of p-hat is Normal Distribution with mean…

Q: 4. Compute the mean and the Standard deviation of the probability distribution table of : 2 Y 0.2…

A:

Q: Suppose the average annual consumption of milk in Zambia is 23.4 gallons per person with a standard…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: 1. The waiting time at the doctor's office has a normal distribution with a mean of 35 minutes and…

A: Given: μ=35 minutesσ=2.6 minutes

Q: Suppose male heights follow a normal distribution with μ = 178.4 cm and σ = 7.6 cm. What is the…

A: It is given that the male heights follow normal distribution with mean 178.4 cm and standard…

Q: III. The height of the PBA players mean of 193 cm with standard deviation of 7. If 30 of them are…

A: Given,sample size(n)=30mean(μ)=193standard deviation(σ)=7

Q: Suppose that a random variable (e.g., market value for a piece of equipment) is normally…

A: The given data: Mean, μ=175  Variance, σ2=25 Standard deviation, σ is given as: σ=25=5   The…

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

A:

Q: Suppose that you take a sample of size 20 from a population that is not normally distributed. Can…

A: Given : sample size , n = 20

Q: Suppose that, according to a recent census, the income per capita measured in U.S. dollars was…

A: The per capita income in country A is $41716. The per capita income in country B is $44871. The…

Q: 4. Find the probability distribution for the number of tails that occur when 4 coins are tossed. 5.…

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Q: A broadcasting executive is reviewing the prospects for a new television series. According to his…

A: Given: Probability that rating is higher than 17.8 is 0.25 Probability that rating is higher than…

Q: Suppose that you take a sample of size 15 from a population that is known to be normally…

A: Solution: Given: Suppose that you take a sample of size 15 from a population that is known to be…

Q: Suppose that the mean daily viewing time of television is 8.35 hours per household. Use a normal…

A: The Z-score for a random variable, X is Z=X-μσwhere μ=population mean            σ=population…

Q: An expert witness for a paternity lawsuit testifies that the length of a pregnancy is normally…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Suppose that an ice cream dispenser fills up an average of 200 mL per cup. If it is in normal…

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A:

Q: 4. The average salary for first-year teachers is $27,989. Assume the distribution is approximately…

A: Given,mean(μ)=$27,989standard deviation(σ)=$3250

Q: he agency for healthcare research and quality reported that 53% of people who had coronary bypass…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: 2.Suppose that 60% of middle school students in San Diego wear braces. A random sample of 250 San…

A: Given Information : Suppose that 60% of middle school students in San Diego wear braces. A random…

Q: If the probability that the random variable Z with a standard normal distribution is between the -k…

A: We know, Z follows standard normal distribution, therefore,…

Q: Assume that the traffic to the web site of Smiley's People, Ic., which sells customizec follows a…

A: Given data,Mean μ=6.5sd     σ=3P(X>1.5)=?

Q: 2) The factory workers in Dilovası are prone to a disease called Pneumonia. In a recent survey in a…

A: Let us denote X=the number of infected workers n=sample size=450p=probability of getting an infected…

Q: Suppose the current measurements made on a conductor wire track follow a normal distribution with…

A: Given, Suppose the current measurements made on a conductor wire track follow a normal distribution…

Q: 4. Create a probability distribution for distribution of "number of heads" appearing after flipping…

A: We have given that  Total possible number of outcomes = 23 = 8 The sample space, S = {HHH, HHT, HTH,…

Q: Calculate the probability of a sample mean being at least as high as a specified value when σ is…

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Q: Bill contends that people spend between 0 and 80 minutes each day listening to music, and he insists…

A: Given: Hadey states that it doesn't make sense in believing that goats are likely to spend more…

Q: Suppose a set of 100 random numbers is normally distributed, with a mean of 50 and standard…

A: suppose a set of random numbers is normally distributed, with a mean of 50 and standard deviation 2.…

Q: 2. The probability that a package is delivered on time is 0.97. If 500 randomly selected packages…

A: Givenprobability that package delivered on time (p)=0.97sample size(n)=500

Q: A state insurance commission estimates that 13% of all motorists in its state are uninsured. Suppose…

A:

Q: 2. Based on data, the number of motor accidents occurring in an expressway is in the form of Poisson…

A: Let X be the number of motor accidents in a week.  X follows poisson distribution with parame

Q: 20. Suppose that the sales of a Gas station followed a uniform distribution, with a standard…

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Q: What is the mean of the sampling distribution of ?̂? What is the standard deviation of the sampling…

A: Given Data population proportion,p = 0.50 sample size n = 40

Q: Suppose it is known that the distribution of purchase  amounts by customers entering a popular…

A: We have given that.   X~N( μ , ?^2 )   μ = 75, ? =20   Z-score =( x - μ )/?   Note:- According to…

Q: Suppose that you take a sample of size 40 from a population that is normally distributed. Can the…

A:

Q: 3. The heights of the students in a certain school are normally distributed with an average height…

A: Hi there! Thanks for posting the question, since there are three different questions we will solve…

Q: Still in the same context, aproximate the probability of having at most 26 jurors using the normal…

A: Here, n = 40 and p = 0.80.

Q: Suppose that 8% of all males suffer some form of color blindness. 350 men are sampled. a. What is…

A:

Q: It is reported that American adolescents spend an average of μ =4 hours per day using smart phone (σ…

A: According to the provided information, μ =4 σ = 2