If x represents a random variable with mean 137 and standard deviation 16, then the standard deviation of the sampling distribution of the means with sample size 64 is 2. True O False

Q: A random variable X follows a Normal Distribution with a mean of 5. It would be logical to say that…

A: It is given than the random variable X follows normal distribution with mean 5, and the objective is…

Q: If the mean and standard deviation of a population are 40 and 2, respectively and the sample size is…

A: Dear student, If you find this solution helpful please upvote ? it.

Q: A sample of size 15 will be drawn from a population with mean 125 and standard deviation 28. a.…

A: a) sample size = 15 < 30 And it is not mention about the distribution of sample. So, It is…

Q: If n is multiplied by the factor k in the binomial distribution having the parameters n and p, what…

A: In question, Given that n is multiplied by the factor k in the binomial distribution having the…

Q: 1. Assume that the heights of 2,000 male students of JRU are normally distributed with a mean 65.0…

A: Given Information: Assume that the heights of a 2000 male students of JRU are normally distributed…

Q: Random samples of size 81 are taken from an infinite population whose mean is 66 and standard…

A:

Q: For a random variable that is normally distributed, with a mean of 80 and standard deviation of…

A:

Q: If x represents a random variable with mean 118 and standard deviation 35, then the standard…

A: According to the given information, we have Mean = 118 Standard deviation = 35 Sample size = 49

Q: For a random variable that is normally distributed, with mean of 80 and standard deviation of 10,…

A:

Q: Suppose that a population is known to be normally distributed with mean = 2,000 and standard…

A: GivenMean(μ)=2000stanadard deviation(σ)=230sample size(n)=16

Q: The number of Grade 11 learners per section in Kasiglahan Village Senior High School has a mean of…

A: The population mean is 56.3. The population standard deviation is 8.6. We have to write which…

Q: Suppose the annual consumption of chicken mean is 20.84 pounds per person, and that thestandard…

A: From the given information,Population mean = 20.84 pounds,Standard deviation = 9.193 pounds,And…

Q: If x follows a distribution not known to be normal, then to assume that the distribution of the…

A: Solution: From the given information, the distribution of X is not known.

Q: If x represents a random variable with mean 117 and standard deviation 40, then the standard…

A: Given : Mean , u = 117  standard deviation, σ = 40

Q: If a random variable X has the normal distribution with mean 9 and standard deviation 2, about what…

A: Given data, mean=9 sd=2 P(X<5)=?

Q: For a population with a mean of 72 and a standard deviation of 10 what is the standard error of the…

A: From the provided information, Mean (µ) = 72 Standard deviation (σ) = 10

Q: For a normal population with a mean of μ = 80, and a standard deviation of σ = 10, what is the…

A:

Q: If x represents a random variable with mean 125 and standard deviation 20, then the standard…

A:

Q: Given a standard error of 5.2 with a sample size of 9. Then the standard deviation is

A: Solution: 4. From the given information, a standard error is 5.2 and n=9.

Q: If x represents a random variable with mean 132 and standard deviation 50, then the standard…

A:

Q: When simple random samples are drawn from a population that is normally distributed, the sampling…

A: According to the definition of Central limit theorem, the sampling distribution of the sample means…

Q: if X is normally distributed random variable with a mean of 80 and a standard deviation of 12, then…

A: GivenMean(μ)=80standard deviation(σ)=12

Q: If x represents a random variable with mean 124 and standard deviation 30, then the standard…

A: Solution: Note: Hello! As you have posted 2 different questions, we are answering the first…

Q: If x represents a random variable with mean 125 and standard deviation 36, then the standard…

A: For a random sample of 81, X –bar follows normal with mean value of 125 and standard deviation of 4.…

Q: In a normal distribution with mean 375 and standard deviation 48, how large a sample must be taken…

A: It is an important part of statistics. It is widely used.

Q: If x represents a random variable with mean 137 and standard deviation 35, then the standard…

A: Central Limit Theorem for mean: If a random sample of size n is taken from a population having mean…

Q: If the population standard deviation is σ=10, how large a sample is necessary to have a standard…

A: σ=10   The standard error is given by SE = σn n = (σSE)2

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: If X is a random variable with mean 5 and standard deviation 3, then the mean of the random variable…

A: The random variable is X.

Q: Suppose that we have a normal population with mean 7 and standard deviation 4.   What is the…

A: From the provided information, Mean (µ) = 7 Standard deviation (σ) = 4 Sample size (n) = 6

Q: If the random variable X is normally distributed with a mean of 75 and a standard deviation of 8,…

A: Given: µ = 75 σ = 8

Q: If X represents a random variable coming from a normal distribution with mean 5 and if P(X > 6.4) =…

A: P(X>6.4) = 0.38   Mean = 5     P(5<X<6.4) = ?   when X = 0.5;  Z = 0 (which is the center…

Q: If a random sample of size 14 is drawn from a normally distributed population with mean 43.5…

A: Given Sample size n = 14 Population is Normally Distributed with mean 43.5 minutes  Sample standard…

Q: While there is much debate, several health authorities have concluded that a vitamin D level of 30…

A: Using the given information.

Q: Suppose X is a normally distributed random variable with a mean of 9.00. If the probability that X…

A: Obtain the value of the standard deviation of X. The value of the standard deviation of X is…

Q: Suppose X is a random variable with a mean of 10 and a variance of 100. suppose Y is a random…

A:

Q: For a population with a mean of 45 and a standard deviation of 10, what is the standard error of the…

A: Obtain the value of standard error for the sample of size n=4 scores.   The value of standard…

Q: If the population standard deviation is unknown, then we could use the sample standard deviation to…

A: We have given that the statement about the standard error of the mean. The formula of standard error…

Q: If the Standard Error SE( y ) is 1.299 and if the sample standard deviation is 4.87, what is the…

A: It is given that S.E(mean) = 1.299 Sample SD s = 4.87

Q: If x represents a random variable with mean 131 and standard deviation 40, then the standard…

A: Given that ; u = 131  ? = 40 Sample size ( n) = 100 Here we use the concept of standard normal…

Q: While there is much debate, several health authorities have concluded that a vitamin D level of 30…

A: Solution

Q: Suppose x is a normally distributed random variable with a mean of 12 and a standard deviation of 3.…

A: Given,      Meanμ=12      Standard deviationσ=3

Q: If a distribution is normal with mean 10 and standard deviation 3, then the mode is also 10. True O…

A: Given data Normal distribution with mean = 10 Sd= 3 Then the mode will also 10 We have to identify…

Q: If the sample size is 100 and the population standard deviation is 20, then the standard deviation…

A: Given  True or false question Sample size=100  Population standard deviation=20  We need to…

Q: Hello. Can I get help on how to work out this problem? If there is also a way to calculate using the…

A: Power of a test:Power of a test is the probability of rejecting a null hypothesis when it is false.…

Q: Suppose a simple random sample of size  n = 50 is obtained from a population whose size is N =…

A:

Q: If the sample size is 100 and the population standard deviation is 40, then the standard deviation…

A: We have given that,  Population standard deviation (σ) = 40 and sample size (n) = 100 Then,  We have…

Q: Suppose the variance of a sample is 5.7. Find the standard deviation. Round to two decimals.

A: According to the given information, we have Variance = 5.7

Q: If the sample size is 100 and the population standard deviation is 20, then the standard deviation…

A: Standard error:The standard deviation of the sampling distribution of the mean is called standard…

Q: If one normal distribution has a standard deviation of 5, and another has a standard deviation of…

A: