Given two normally distributed populations with equal means and standard deviations (01,02) = (31, 28), respectively, what is the probability that samples of size n₁ = 105 n2 111 will yield a value of 1-2 as large as or greater than -9 ? O e. 0.5853 O d. 0.9873 O b. 1.0000 O c. 0.9986 a. 0.9878

Q: Suppose the annual rainfall in the Southern California (in inches) is normally distributed with mean…

A: The mean is 10 and the variance is 25. The standard deviation is √variance=√25=5.

Q: For a population With a mean of 75 and a standard deviation of 12, what is the probability that a…

A:

Q: A sample of 235 students was taken for an exploratory study. Each member of a random 35 of these…

A: Since the sample size is sufficiently large, and the population standard deviation is known, the…

Q: A veterinary researcher takes an SRS of 60 horses presenting with colic whose average age is 12…

A: Option b is the correct answer.

Q: Suppose the GPAs of all VVC students have an approximately normal distribution with a mean of 2.98…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: Given a normally distributed population with a mean of 120 and standard deviation of 40, what is the…

A: given data,normal distribution ,μ=120σ=40n=16P(X¯ ≤105) =?

Q: A population is normally distributed with mean 15 and standard deviation 2.6. Find the probability…

A:

Q: A normally distributed population has mean 1,200and standard deviation 120. Find the probability…

A:

Q: A normal population has mean 0.1 and standard deviation of 2.1. Find the probability of mean of…

A:

Q: 5) A population has a normal distribution with a mean of 50 and a standard deviation of 10 If a…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: Suppose the random variable X had a population mean u=20 and a population standard deviation o=9. If…

A: Given that: X is normally Distributed with mean µ = 20.0 and standard deviation σ = 9.0 By using…

Q: suppose the walking step lengths of an adult males are normally distributed with a mean of 2.7 feet…

A: Given that  Mean=μ=2.7 Standard deviation=σ=0.3 Sample size=n=70 X~Normal(μ=2.7,σ=0.3)

Q: A sample of 36 is taken from a population that is normally distributed with mean 15 and standard…

A:

Q: will apply for graduate school. If the population standard deviation is 10 and the sample size is…

A: Given that  Population proportion p=25%=0.25 Sample size n =100

Q: 2. A random variable follows a normal distribution with mean 12k and variance o?. The probability…

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

Q: The acidity of human​ blood, measured on a pH​ scale, is a normal random variable with a mean of 7.4…

A:

Q: Suppose the weight of new born baby is approximately normally distributed with a mean of 4.70 pounds…

A: Given information: μ=4.70, σ=0.40n=25

Q: 3. 100 students measure the height of a building (in metres). If the height is L, assume each…

A: The probability that the average of the 100 measurements is wrong by more than 0.5m is obtained…

Q: Given two normally distributed populations with equal means and standard deviations (01,02) = (61,…

A: We have given that two normally distributed population have equal means and standard deviations are…

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: For a normally distributed random variable, the population mean is 4.32 and population standard…

A:

Q: Suppose the average age of a Tulane undergraduate is 20 years with a standard deviation of 1.2…

A:

Q: If a population has a standard deviation σ , then the standard deviation of the mean of 100 randomly…

A:

Q: A large tank of fish from a hatchery is being delivered to a lake. The hatchery claims that the mean…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: Suppose the random variable X has a population mean u=20 and a population standard deviation o=9. If…

A:

Q: A certain brand of car tends to break down on average after 115,000miles with a standard deviation…

A: The objective of this question is to find the probability that the average breakdown mileage of a…

Q: uppose samples of size 100 are drawn randomly from a population that has a mean of 20 and a standard…

A: Given that, μ=20,σ=5,n=100 The mean and standard deviation of the sampling distribution of sample…

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

A:

Q: ples of size 100 are drawn randomly from a normal population that has a mean of 20 and a standard…

A: Given: μ=20, σ=5, n=100 The corresponding z-value needed to be computed: The probability of…

Q: In a study of life expectancy in a certain region, the mean age at death was 70 years, and the…

A:

Q: 1. Service time for a customer coming through a checkout counter in a retail store is a random…

A: Given that,The customers in the first line are The customers in the second line are The distribution…

Q: For a normally distributed population with a mean of u = 70 and a standard deviation of o = 10, what…

A: According to the given information, we have Mean = 70 Standard deviation = 10 Sample size, n = 64