Fifty five percent of the students in a class of 135 of planning to go to graduate school, Find the variance of the binomial distribution

Q: suppose that a coin is to be tossed four times and let X represent the number of tails that can come…

A: Given: A coin is tossed four times. X represents the number of tails. The objective is to find…

Q: One way analysis of variance is used to test for

A: One way analysis of variance also known as ANOVA.

Q: The number of and the variance of the time between successive hurricanes. Select one a 2 and 1 b.…

A: Let X be the length of time in months between two successive hurricanes. The distribution function…

Q: The average stock price for a company is $30, and the variance is 67.24. Assume that the stock…

A: From the provided information, The average price for a company is $30 and variance is $67.24. That…

Q: Twelve percent of U.S. employees who are late for work blame oversleeping. You randomly select four…

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Q: c) the gestation time differs from the mean by more than 3 weeks. d) of 100 boys born in upstate NY…

A: Given, for males born in upstate NY, the gestation times are normally distributed with a mean of 39…

Q: Explain what the purpose of an Analysis of Variance is.

A: A ANOVA is a statistical method for making simultaneous comparisons between two or more group means.…

Q: 79% of the US adults think that political correctness is a problem in America today. You randomly…

A: As per Bartleby policy, I will solve the first three sub-parts The mean of the binomial…

Q: Suppose that you draw a random sample from a population where you know the population mean is 36 and…

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Q: A population of Senior High School consits of number 1,2,3,4 and 5 .Compute the mean ,variance and…

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Q: You are doing a one way analysis of variance on the fuel consumption of different makes of cars. You…

A: Suppose we are doing one-way analysis on the fuel consumption of different makes of cars. The total…

Q: Find the mean and variance for the binomial distribution, P=0.56 and n= 8

A: Number of trials n=8 Success of probability p=0.56 X~binomial (n,p)

Q: How many degrees of freedom does the sum of squares errors have?

A: Degrees of freedom for  sum of squares errors is given by (N-k) in one way ANOVA

Q: 20% of the students in a class of 400 are planning to go to graduate school. The standard deviation…

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Q: In a recently conducted survey, workers reported driving an average of 36 miles one way on their…

A: Given Population mean = 36miles Population standard deviation =5

Q: A study found that 1% of Social Security recipients are too young to vote. If 800 Social Security…

A: Here, n=800 and p=0.01. The mean is 8, which is obtained below: μ=np=800×0.01=8

Q: A school is sending 15 children to a camp. If 30% of the children in the school are first graders,…

A: The question is about binomial distribution Given : Randomly selected no. of children ( n ) = 15…

Q: If it is known that the percentage of successful students is 75%, and you take a sample of 15…

A: Givenp=0.75n=15Let "x" be the no.of successful bears x~Binomial(n=15,p=0.75)P(X=x)=(nx)(p)x(1-p)n-x…

Q: Professor Hayashi has implemented a new book for his Fall 2013 statistics course. He wants to see if…

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Q: How is normal distribution can be misused in a airline company?

A: Introduction The normal distribution is a continuous prob. dist.

Q: Explain the three major sources of error variance related to reliability. Provide an example of a…

A: Reliability refers to the consistency in test outcomes of a measure under similar conditions.

Q: The mean and standard deviation of the sampling distribution of the mean is shown as?

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Q: At a certain concert, 34 % of the audience was under 20 years old. A random sample of n = 249…

A: Given,sample size(n)=249sample proportion(p^)=0.34

Q: A school has a population of 8000 students with a mean height of 153 cm with a standard deviation of…

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Q: Assume the probability that a maple tree at age 5 grows less than 130 cm is equal to 0.1. If the…

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Q: A detergent company finds that a family in the country washes an average of 910 kilograms of clothes…

A: Given that: X is normal Distributed with mean µ = 910.0 and standard deviation σ = 85.0 By using…

Q: study found that 1.21% of Social Security recipients are too young to vote. If 800 Social Security…

A: Given that  A study found that 1.21% of Social Security recipients are too young to vote. P = 0.0121…

Q: A researcher says that 50% of the variance in blood pressure can be predicted from heart rate and…

A: It is given that the percentage of the variance in blood pressure can be predicted from heart rate…

Q: Explain Computing Variances by Conditioning.

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Q: stimated that only 2% of high school athletes receive even a partial athletic scholarship to…

A: Given data,p=2% =0.02n=500Find variance and standard deviation?

Q: If it is known that the percentage of successful students is 75%, and you take a sample of 15…

A: Given: The percentage of successful students is 75% Sample size n=15

Q: The scores in a high school are normally distributed with a variance of 225. Suppose that 27.43% of…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

Q: Find the z- score that has 74.5% of the distribution's are to its right

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Q: 2. If the mean and variance of a Binomial distribution are 9 and 6 respectively, find the number of…

A: Step 1: Start with the formulas for mean and variance of a Binomial distribution:Mean (μ) =…

Q: Derive the variance of the Student's t distribution.

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Q: Adam thinks the five people who sit next to him in class spend the same amount of money on their…

A: For the given data Find Use three decimal places in the table   DF SS MS F Groups…

Q: According to a recent​ study, 80% of adults say they play games on their smartphone. Suppose we…

A: The provided data is, p = 0.80 n = 200 The mean and standard deviation of the population proportion…

Q: Here are 6 celebrities with some of the highest net worths (in millions of dollars) in a recent…

A: Sure, let's break down each calculation and what it tells us about the net worths:1. Range: The…