Based on past experience, a bank believes that 8 % of the people who receive loans will not make payments on time. The bank has recently approved 200 loans. What assumptions must be true to be able to approximate the sampling distribution with a normal model? Assumptions: What are the mean and st

Q: A 4 year college will accept any student ranked in the top 60% of a national exam. If the test…

A: From the given information,Mean (µ) =600Standard deviation (σ) = 100Let the test score be a x which…

Q: A normal distribution has a mean of 100 and a standard deviation of 15. What is the median for this…

A: Given Mean μ=100, standard deviations σ=15

Q: According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015…

A:

Q: What is the mean reading? What is the standard deviation?

A: A function f(x) is said to be a probability density function if f(x) ≥ 0 and ∫f(x)dx = 1. Consider…

Q: According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015…

A: Given Data Population Mean,μ = 76.3 Population Standard Deviation,σ = 15.0 sample…

Q: Help!!

A: (a) Given: μ=374, σ=64, n=5 The corresponding z-value needed to be computed is: The probability…

Q: Why is the standard deviation of a sampling distribution smaller than the standard deviation of the…

A: According to information provided in the question, it is required to determine the reason why the…

Q: A banker finds that the number of times people use automated-teller machines (ATMs) in a year are…

A: Solution-: Given:μ=40,σ=11.2 We want to find  the proportion of customers who use ATMs between 30…

Q: top 19 percent are

A: Given that  High school students across the nation complete in a financial capability challenge each…

Q: Suppose the number of Covax and Pfizer vaccine bought by the Philippine government are normally…

A: Let, X=the number of vaccine μ =mean σ = sd

Q: What is the relationship between the standard deviation of the population and the standard deviation…

A:

Q: ppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.42 and a…

A: Given data,Mean μ=8.42sd    σ=1.52P(6.9<X<9.94)=?

Q: A certain video game has 72% chance of sucess. During summer vacation a person plays 12 games a day.…

A: In question, Given that A certain video game has 72% chance of sucess. During summer vacation a…

Q: If you have a population standard deviation of 10 and a sample size of 4, what is your standard…

A: Given,population standard deviation(σ)=10sample size(n)=4

Q: What percentage of scores falls in the tails of a normal curve?

A: Empirical rule: According to empirical rule, 99.7% of data lies within three standard deviations of…

Q: Fran is training for her first marathon, and she wants to know if there is a significant difference…

A: Given data,n1=40x1=46.6σ1=4.6n2=45x2=48.8σ2=2.4Compute value of test statistic?

Q: According to the Center for Disease Control and Prevention (CDC), the mean life expectancy in 2015…

A: Given Data Population Mean,μ = 71.8 Population Standard Deviation,σ = 15.0 sample…

Q: The daily stock price for International Business Machines (IBM) historically has followed an…

A: Given, mean μ=$141.796 standard deviation σ=$4.9101

Q: An article in the San Jose Mercury Newsstated that students in the California state university…

A:

Q: A banker finds that the number of times people use automated-teller machines (ATMs) in a year are…

A:

Q: Say that an extraversion scale has a population mean of 40 and a standard deviation of 10. About…

A:

Q: What effect does increasing the sample size have on the population standard deviation? I know that…

A: The increase in the size of the sample, decreases the population standard deviation. This happens…

Q: What is the Empirical Rule and how does this rule apply to a normal distribution of data?

A: We have to define the Empirical Rule and how does this rule apply to a normal distribution of data.

Q: Fast Auto Service provides oil and lube service for cars. It is known that the mean time taken for…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

Q: 4. A surgeon is experimenting with a new technique for implanting artificial blood vessels. Using…

A: GivenMean(μ)=32.5standard deviation(σ)=2.6

Q: On a normal curve, where do most scores fall?

A:

Q: How we quantify the amount of sampling variation

A: The quantifying the amount of Sampling Variation for given example. First of all, we understand what…

Q: If a normal distribution has a mean of 10 and a standard deviation of 2, then what is the likelihood…

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Q: What is the sample standard deviation?

A: To Discuss: What is the sample standard deviation?

Q: A random sample of 160 commercial customers  revealed that 32  had paid their accounts within a…

A: For normality condition we have : (1) n*p  >10 (2) n*(1-p)  >10 where, n: sample size p :…

Q: Does the sample size ? affect the standard deviation of all possible sample means? Explain your…

A: Sampling distribution of the sample mean: If the true population distribution of a random variable,…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.