Suppose the mean height for first grade Children is 90 Cm and the Standard deviation S 12 cm. Take a Sample of Size 7=36

Q: The weights of adult California Condors average 14.8lbs with a standard deviation of 3.25lbs.…

A:

Q: Measuring lung function: One of the measurements used to determine the health of a person's lungs is…

A: The hypothesized mean is 2.1.

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

A: The objective of this question is to find the percentile of a boy with a height of 140 cm given that…

Q: The gestation period for human births can be taken as normally distributed with a mean of 256 days…

A:

Q: The height for an adult American male resident is normally distributed with average 175.3…

A: given data normal distribution μ=175.3σ=7P(x>171)=?

Q: The class mean for the exam was 82 with a standard deviation of 6.  There are 37 students in the…

A: We have given that, Mean = 82 , standard deviation σ = 6  sample size n = 37   Standard error of the…

Q: Assume that the number of pieces per bag has a mean of 264 with a standard deviation of 3. use the…

A: Given :  the number of pieces per bag has a mean of , μ=264  a standard deviation of , σ =3   We…

Q: Scores on a test have a mean of 86 and a standard deviation of 13. Jerrica has a score of 94.…

A:

Q: The Stanford-Binet IQ test is scaled so that scores have a mean of 100 and a standard deviation of…

A: Let "X" be the Stanford-Binet IQ test

Q: Suppose that striped dolphin lengths are normally distributed with a population standard deviation…

A: The formula for the minimum sample size is as follows: Here, zα/2 is the critical value at 95%…

Q: Steel rods are manufactured with a mean length of 27 centimeter​ (cm). Because of variability in the…

A: Given,mean(μ)=27standard deviation(σ)=0.06

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: A normal population has a mean= 61 and standard deviation=16. what proportion of the population is…

A: From the provided information, Mean (µ) = 61 Standard deviation (σ) = 16 X~N (61, 16)

Q: The heights of the women in a particular town are normally 143 cm and 168 cm. Using 95.4% of the…

A:

Q: uppose the distribution of heights of a group of 200 children is normal with a mean of 150…

A:

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

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: Assume a normal distribution of a sample with a Mean of 10, and a standard deviation of 2.  Convert…

A: We have given that.   X~N( μ , ?^2 )   μ = 10, ? = 2   Z-score =( x - μ )/?

Q: The mean and variance of population with sample size is 100 is 20 and 4 respectively.Calculate the…

A:

Q: The age distribution of a sample of 5000 persons is bell shaped with a mean of 40 years and a…

A: GivenMean(μ)=40standard deviation(σ)=12

Q: e diameters of Douglas firs grown at a Christmas Tree Farm are normally distributed with a mean of 4…

A: GIVEN DATA, normal distributionμ=4σ=1.5we have to find out the given probabilities.

Q: The scores on a marketing exam were normally distributed with a mean of 67 and a standard deviation…

A: Given data normally distributed with mean (μ) =67, standard deviation (σ) =9.Let ‘X’ be a normal…

Q: Pyramid Lake is on the Paiute Indian Reservation in Nevada. The lake is famous for cutthroat trout.…

A:

Q: The fuel efficiency of cars currently registered in the Commonwealth of Virginia is normally…

A: X follows a Normal distribution with mean = 24 and S.D = 6 Then z=(x-mean)/SD = (x-24)/6  follows…

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 270 days…

A: Let "X" be the lengths of pregnancies in a small rural village in days.

Q: The length in feet of a structural I-beam is normally distributed with a mean of 6 ft and a standard…

A: From the provided information, Mean (µ) = 6 ft Population standard deviation (σ) = 1 inch Quality…

Q: The heights of Ukranian women are normally distributed with a mean of 71 inches and a standard…

A: It is given that the heights of Ukranian women follows normal distribution with mean 71 inches and…

Q: The average age of senators in the 108th Congress was 62 years. If the standard deviation was 12.5…

A: Solution: Let X be the age of senator. From the given information,

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

Q: the mean weight of a group of boys is 145 lb, with a standard deviation of 5lb. if the weights are…

A: We have to find correct answer..