A new species of rabbit has an average body length of 45mm with a standard deviation of 3mm. In a random sample of 40 rabbits, what is the probability that the sample mean of the body length of the sample is between 44.5 and 45.5

Q: in a random sample of 92 trout, the average weight is 8 pounds, with standard Heviation(s) = 0.4,…

A: Answer: From the given data, Sample size(n) = 92 mean(x¯) = 8 Standard deviation(S) = 0.4

Q: A population has a standard deviation of 25 and a mean of 300. Given a random sample of size 100,…

A:

Q: A population has a mean of 33 and a standard deviation of 5 . What is the probability that the…

A: Population mean=33Population standard deviation=5Sample size n=58

Q: A random sample of 25 observations yield a mean of 116 and a standard deviation of 12. What is the…

A: Given data,Mean μ=116sd σ=12P(X>1150)=?

Q: a typical adult has an average IQ score of 105 with a standard deviation of 20. If 19 randomly…

A:

Q: The weight of trucks traveling on a particular section of I-475 has a population mean of 15.8 tons…

A:

Q: Suppose that NBA players average 34.4 points per game with a standard deviation of 8.65. A random…

A: GivenMean(μ)=34.4standard deviation(σ)=8.65sample size(n)=138

Q: The weight of trucks traveling on a particular section of I-475 has a population mean of 15.8 tons…

A: Central limit theorem: The central limit theorem implies that the distribution of the sample means…

Q: In 1999, the murder rates (per 100000) for the 50 states and the District of Columbia had a mean of…

A: Given mean is 5.9 and standard deviation 6.3 sample size is 5

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: Part ii) Suppose the number of printers drawn is quadrupled. How will the mean of the sample mean…

A: From the given information, The mean of the distribution is 17.57 ppm and the standard deviation is…

Q: The students in a certain high school have an average height of 160 cm with a standard deviation of…

A: Given : Sample size = n = 50 standard deviation = σ = 12

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Mean = 139.1 Standard deviation = 1.1

Q: 3 inches.  If a random sample of 45 men in this age group is selected, what is the probability that…

A: Given :  The heights of 18-year-old men are normally distributed, with a mean of 68 inches and a…

Q: In 1999, the murder rates (per 100,000) for the 50 states and the District of Columbia had a mean of…

A:

Q: The average weight of oranges in a box was 74 g and the standard deviation was 12 g. Calculate the…

A:

Q: The lengths of individual fish in a pond have a non-Normal distribution with a mean of 18.6 cm and a…

A:

Q: A random sample of 18 light bulbs is drawn from a normally distributed population. The population…

A:

Q: The height of the dogs in a pet shop is normally distributed with the average height of 25 cm and…

A: The data is normally distributed. Population mean is μ=25. Population standard deviation is σ=15.

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: There is a large supply of light bulbs with the average life of 900 hours and the standard deviation…

A: It is given that the mean is 900 hours and the standard deviation is 60 hours.

Q: The record of 35 randomly selected participants of a marathon was selected. The mean time it takes…

A:

Q: For a random sample of 40 students, the average statistics midterm score is 73 points (out of a…

A: The sample size is 40, average statistics midterm score is 73 points, and standard deviation is 7.3.

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of…

A: Let X denote the lengths of the steel rods are normally distributed with a mean of μ=94.6 cm and a…

Q: Blood pressure is distribued Normally, with a mean of 85 mm and a standard deviation of 20 mm. As a…

A:

Q: The number of minutes per week teenagers spend on Tik Tok is normally distributed with a mean of…

A:

Q: A simple random sample of 144 observations was taken from a large population. The sample mean and…

A: sample mean is given by, x = 120.8 and sample standard deviation is given by, s = 32.46 Number of…

Q: The annual salary for an emergency room nurse is a normally distributed random variable with a mean…

A: Mean()=80000standard deviation()=12000sample size(n)=36

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 population has a standard deviation of 18 on average how much difference should exist for a random…

A: From the provided information, Population standard deviation (σ) = 18 Sample size (n) = 36

Q: A random sample of 25 observations yield a mean of 106 and a standard deviation of 12. What is the…

A: It is given that mean and standard deviation are106 and 12, respectively.By using central limit…

Q: Suppose that heights of 10-year-old boys in the US vary according to a normal distribution with mean…

A: The objective of this question is to find the probability that the height of a randomly selected…

Q: Suppose the heights of a certain population of people follow a normal distribution with a mean of…

A:

Q: Suppose that heights of 10-year-old boys in the US vary according to a normal distribution with mean…

A: The objective of this question is to find the probability that the height of a randomly selected…

Q: The height of 10 year old females is normally distributed with a mean of 54.8 inches and a standard…

A: It is given that mean and standard deviation are 54.8 inches and 2.74 inches, respectively.

Q: The annual salary for an emergency room nurse is a normally distributed random variable with a mean…

A: Suppose the random variable x defines the annual salary for an emergency room nurse.

Q: A so-called "murder hornet" has an average body length of 45 mm with a standard deviation of 3 mm.…

A: Let X be the random variable from normal distribution with mean (μ) = 45,  standard deviation (σ) =…

Q: In a random sample of 87 trout, the average weight is 6 pounds, with standard deviation(s) = 0.8,…

A: Answer: From the given data, Sample size(n) = 87 mean (x¯) = 6 Standard deviation(s) = 0.8

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.