g the length of nails in a large box of 3-inch nails is normally Distributed with a mean of 3 and a standard deviation of 0.04. What is the probability that a randomly selected nail from the box is longer than 3.025?   what is the probability that a rain fly selected nail from the box is between 2.99 and 3.01 inches?  If the manufacturer intends to discard the bottom 5% and the top 5% of nails, in terms of their lengths, what would be the cut_off lengths for the nails to be discarded?

Q: A random sample of 14 nurses in a large hospital showed that they worked on average 44.8 hours per…

A: The random variable time follows normal distribution. The sample size is 14. The sample mean is…

Q: According to a study done by Pierce students, the height for Hawaiian adult males is normally…

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: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: It is an important fact in statistics . It has got wide applications in all statistical fields .

Q: the life expectancy for a species of certain insects is normally distributed with mean of 14.3…

A: It is given that the mean is 14.3 and the standard deviation is 4.3.

Q: Suppose the weight of an adult male Labrador is normally distributed with u=71.2 pounds and a…

A: Mean()=71.2standard deviation()=3.4

Q: Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. What…

A:

Q: Suppose IQ scores are normally distribut a mean of 100 and a standard deviation What is the…

A: Solution:  Let X be the IQ scores are normally distributed with mean 100 and standard deviation 15.…

Q: the mean starting salary for nurses is 67,984 dollars nationally. the stndard deviation is…

A: Mean is 67984 dollars Standard deviation is 10391 dollars

Q: The average time taken for your Internet service provider to remotely resolve a trouble ticket has a…

A:

Q: annual precipitation amounts in a certain mountain range are normally distributed with a mean of 82…

A: Given,sample size(n)=25mean(μ)=82standard deviation(σ)=9

Q: The term "Freshman 15" refers to the claim that college students typically gain 15 lb during their…

A: To find the probability that a randomly selected male college student gains 15 pounds or more during…

Q: What is the probability that 32 cans of Diet Pepsi will contain, on average, more than 12.18 ounces…

A:

Q: It is estimated that the weight of a box of cereal follows a normal distribution with a mean of 23.8…

A: Solution: Let X be the weight of a box of cereal. From the given information, X follows normal…

Q: The driving distance to work for residents of a community is has a mean of 21 miles and a standard…

A: The objective here is to find the probability that individual drives between 10 and 20 miles to…

Q: he number of customers at a coffee shop per day follows a normal distribution with a mean of 3,500…

A: given data, normal distributionμ=3500σ=250probability that the coffee shop will serve more than…

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: the average score on s math test is 75 with a standard deviation of 8. What is the probability that…

A: The Z-score for the random variable X equals 90 is obtained below as follows: The Z-score for the…

Q: Suppose that the height distribution of students in your class was normally distributed with mean 68…

A:

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: The amount of weight on an ACME tractor trailer is known to have a normal distribution with mean 9.5…

A:

Q: The heights of strawberry plants are Normally distributed with a mean of 12 inches and a standard…

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: 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: If the weight (in pounds) of fish in my pond is normally distributed with mean 8 and standard…

A: Answer: Given that:   ‘x’ is Normally distributed with                 Mean  µ =8       standard…

Q: Suppose that the body lengths of adult male crested porcupines in a certain region in the U.S. are…

A: The random variable X is defined as the body lengths of adult male crested porcupines in a certain…

Q: A manufacturer is producing metal rods, whose lengths are normally distributed with a mean of 65.0…

A: #.Given : length of rod follow normal distribution with mean=65 cm and standard deviations=0.3 cm…

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.