Q.3. Floods in a stream have the mean 600 m/s and the standard deviation 400 m/s. Please answer the following questions assuming normal distribution. What is the probability that the flood flow any year exceeds 700 m'/s? What is the 100-year flood discharge? a). b)

Q: 4. For X bar = 55.00 and S = 7.00, between what two values do %3D approximately 95% of the cases lie…

A: Note: As per the guidelines, only first question of this file has been solved. 4. Given data: Mean,…

Q: 3. The level of calcium in the blood of healthy young adults follows a normal distribution with mean…

A: Solution: 4. a. State the hypotheses. Null hypothesis: Alternative hypothesis: The test is…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Let Z be a random variable from standard normal distribution with mean = 0 °C and standard deviation…

Q: Let, X has a normal distribution with a mean of 40 and a standard deviation of 8. The z value for x…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given that batch of thermometers are normally distributed with a mean of 0oc and a standard…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Given ,mean(μ)=0standard deviation (σ)=1

Q: Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per…

A: Given Information: Assuming that the females have pulse rates that are normally distributed.

Q: The value of the standard deviation o of a normal distribution is always O a. Equal to zero b.…

A: Basics: We know that , standard normal distribution  with mean of 0 and standard deviation of 1. i.e…

Q: In a course where the mean final exam grade is 68 with a standard deviation of 6.5, the grading…

A: It is given that the scores are normally distributed with mean 68 and standard deviation 6.5.

Q: A group of Internet stocks has a mean cost per share of M=$46 with standard deviation of s=$10.…

A: Empirical rule: The probability of the observation lies within 1 standard deviation of the mean,…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: 1. The mean height of the students in Grade 12 Newton is 125 cm and has a standard deviation of 3.5…

A:

Q: Ex8: Assume that the current measurements in a strip of wire follow a normal distribution with a…

A: Assume that the current measurements in a strip of wire follow a normal distribution.

Q: Suppose X has a normal distribution with a mean of 200 and a standard deviation of 40. Find the…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: we have given that  X~N(0 ,1) μ=0  ,σ=1 Z-score=( x -μ )/σ

Q: Ex. 13. If the probability of a defective bolt is 0.2, find (i) mean (ii) standard deviation for the…

A: Givenp=0.2sample size(n)=400

Q: A normal distribution has a mean of mu = 80 with o = 20. What score separates the lowest 30% of the…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: he PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: Let X has a normal distribution with a mean of 120 and a standard deviation of 20. The z value…

A:

Q: 3. The level of calcium in the blood of healthy young adults follows a normal distribution with mean…

A:

Q: 34. Assume that the readings at freezing on a batch of thermometers are normally distributed with a…

A: 34 Obtain the value of P48 such that temperature reading separating the bottom 48% from the top 52%.…

Q: The heights of students from a certain school are normally distributed with mean 106 cm and standard…

A: x=100.64

Q: Given the normal distribution with mean = 160 and standard deviation = 15, find the area. ANSWERS…

A:

Q: 8 Assume total cholesterol value for a certain population is approximately bell shaped with a mean…

A: Consider,X be a total cholesterol value that follows normally distribution with man of 200mg/ 100ml…

Q: Given that it is normally distributed with a standard deviation of 8.025 cm. If a tube is selected…

A: Let us assume the mean=μ Using the area below 59.8, which is 0.05, we get:…

Q: Assume that x has a normal distribution with the specified mean and standard deviation. Find the…

A:

Q: Assume that X is a random variable with a normal distribution. if the mean is 17 with a standard…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: 0 p.m.with a standard deviation of Rs. 60, and a random sample of 1,000 rom another State gives the…

A: We have given that  Sample sizes n1=1200      , n2=1000        Sample means X̄1=400      , X̄2=500…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: IF babies Neighto are normally distributed with a mean ot 3.23ky and a standard deviantion of 0.87kg…

A:

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A:

Q: 1. Assume that scores on a bone mineral density test are normally distributed with a mean of 0 and a…

A: The score separating the lowest 9% scores from the highest 91% is obtained below:From the…

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A: Let X denote the readings on thermometer. Given that X follows N(mean = 0, SD = 1) i.e standard…

Q: 3. The level of calcium in the blood of healthy young adults follows a normal distribution with mean…

A: GivenNull hypothesis : H0 : µ = 10alternate hypothesis : Ha : µ < 10Sample mean = 9.8Population…

Q: A vertical line is drawn through a normal distribution so that 17.36% of the distribution is located…

A:

Q: 24. The probability that a river flow exceeds 2000 m3/sec is 15%. The coefficient of variation of…

A:

Q: Let, X has a normal distribution with a mean of 60 and a standard deviation of 4. The z-value for x…

A:

Q: How large a sample would have to be drawn to make these limits differ by only 0·1 gm,  assuming that…

A: The objective is to find the sample size required so that the limits differ by only 0·1 gm,…

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A:

Q: The weight, in kilograms, of cereal in a box can be modelled by a normal distribution with Mean u…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: Assume that X has a normal distribution where the mean is μ= 15.2 and the standard deviation is σ=…

A: The mean is 15.2 and the standard deviation is 0.9.

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given is a standard normal distribution where the cumulative distribution for all z greater than a…

Q: Assume the readings on thermometers are normally distributed with a mean of 0°C and a standard…

A:

Q: Calculate the percentage of women who measures (a) more than 1.70 m. (b) between 1.66 and 1.58 m.…

A:

Q: Suppose female heights follow a normal distribution with mu= 164.7cm and standard deviation =7.1 cm.…

A:

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Here, µ= 0 , σ= 1. Z follows a normal distribution.

Q: d. A sample of 6 durations have values: 4.850, 2.200, 2.900, 4.367, 1.750, 3.966. What is the mean…

A: Given:- sample - 4.850, 2.200, 2.900, 4.367, 1.750, 3.966 sample size(n)=6   formula- mean (μ)…

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.