A random sample of 100 cable TV movies contained an average of 3.38 acts of physical violence per program with a standard deviation of 0.30 At the 99% level what is your estimate of population value

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A: Let X be length of time marks the longest 2.16 % of all pregnancies from normal distribution with…

Q: What is the minimum percentage of data values that will come within 2.5 standard deviations from the…

A: To find the minimum percentage

Q: a division wide aptitude test in mathematics was conducted to 1000 students. the mean of the test is…

A: Given : No. of students : Sample size (n) = 1000 Let X : Scores in aptitude test in mathematics…

Q: In New York State, the population of teachers is known to have an average of 12.2 years of classroom…

A:

Q: Suppose that the distribution of touchdowns (in football) is normally distributed with a mean of 250…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: Diastolic blood pressures are assumed to follow a normal distribution with a mean of 85 and a…

A: Consider X be a random variable which follows normal variable indicates diastolic blood pressure. It…

Q: According to National Health Survey heights of men are normally distributed with mean of μ=69.0…

A: The standard deviation is obtained below Critical value: From the standard normal distribution…

Q: The lengths of pregnancies are normally distributed with a mean of 280 days and a standard deviation…

A:

Q: An advertising agency has stated that 20% of all television viewers watch a particular program. How…

A: From the provided information, An advertising agency has stated that 20% of all television viewers…

Q: Vhich distribution is used to construct an interval estimate of a population standard deviation?

A: Which distribution is used to construct an interval estimate of a population standard deviation?

Q: Approximately what percentage of normally distributed data values will fall within 2 standard…

A: It is known that, normal curve is a symmetric and bell shaped distribution.

Q: The weights of tablets are normally distributed with mean 254 mg and standard deviation 4 mg.  What…

A:

Q: The admission committee of AUCA passes 61% of those who took the exam. If the scores follow a normal…

A: We have given that.   X~N( μ , ?^2 )   μ =350 , ? =25   Z-score =( x - μ )/?

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A:

Q: uppose you have a data set of size of 26 with mean 50 and standard deviation 8. If u subtract 8 from…

A:

Q: The average hours of sleep on a weeknight was 6.9 hours with a standard deviation of 1.5 hours. What…

A: Given Let X : The average hours of sleep on a weeknight mean = μ= 6.9  standard deviation = σ= 1.5…

Q: Approximately what percentage of normally distributed data will fall within 2 standard deviations…

A: Based on the Concept of Empirical Rule: About 68% of the area under the curve falls within 1…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 262 days…

A:

Q: Under the normal curve, approximately what percent of scores fall between -2 to -3 standard…

A: The mean and standard deviation of the standard normal distribution are 0 and 1, respectively.

Q: Nationally the average score on the college entrance exams (Verbal test) is 453 with a standard…

A: Consider that μ is the population mean score. Null hypothesis: H0: μ = 453. Alternative hypothesis:…

Q: A certain standardized tests math scores have a bell shaped distribution with a mean of 525 and a…

A: GivenMean(μ)=525standard deviation(σ)=105

Q: How high must a 2016 Vehicles gas mileage be to fall in the top 15% of all vehicles? normal mean is…

A: Given information: normal mean is 23.0mpg standard deviation is 4.9mpg

Q: The length of human pregnancies from conception to birth approximates a normal distribution with a…

A: From the provided information, Mean (µ) = 268 Standard deviation (σ) = 17

Q: A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what…

A: Given that mean=15 and standard deviation = 2 Let, X= number of hours spent by a student in the…

Q: The MF exam has a population mean of 500 and a standard deviation of 200. What are the scores for…

A: Let X=MF exam scores We have given information, The population mean μ=500 And population standard…

Q: Define the term standard deviation?

A: Standard deviation: The standard deviation indicates by how much each observation differs from a…

Q: When a distribution is bell-shaped, approximately what percentage of data values fall within 1…

A: We know that, the empirical rule which is also known as 68-95-99.7 rule.  The Empirical Rule finds…

Q: A recent study found that 69% of all adults over 50 wear sunglasses for driving. In a random sample…

A: Formula : Mean = np Standard Deviation  :

Q: t is known that the average time required to complete a test exam is 80 minutes and the standard…

A: Given Information: Mean μ=80 min Standard deviation σ=10 min. To find how many minutes should the…

Q: What is the lowest standard deviation value ?

A: Standard deviation; The standard deviation indicates by how much each observation differs from a…

Q: Suppose that the score on a reading test are normally distributed within a mean of 70 and a standard…

A:

Q: In a standardized exam the mean score is 400 with a standard deviation of 50. If a random sample of…

A: Given that  μ= 400 , σ= 50 , n = 25

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.