The profits of a mobile company are normally distributed with Mean of R.O (D x 10) and standard deviation of R.O (D). a. Find the probability that a randomly selected mobile has a profit greater than R.O ((Dx10) +10). b. Any mobile phone which profit is greater than R.O ((Dx10) +10) is defined as expensive. Find the probability that a randomly selected mobile has a profit greater than R.O ((Dx10) +20) given that it is expensive. c. Half of expensive mobile phones have a profit greater than R.O h. Find the value of h. D=19

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: The profits of a mobile company are normally distributed with Mean of R.O (18 x 10) and a standard…

A:

Q: A random variable, t, has p.d.f. H(t) given by H(t) = 3 e-3t when t >= 0 Calculate the standard…

A: Given: fHt=3e-3t           t≥0 This is similar to exponential distribution with λ equal to 3. It is…

Q: Suppose that at a gas station the daily demand for regular gasoline is normally distributed with a…

A: Consider that Xi is defined as daily demand for regular gasoline is normally distributed. Thus,…

Q: (b) The amount of money spent on groceries per year by the residents of a housing area is normally…

A:

Q: Consider an investor who is indiferent between stocks B and C and has the coefficient of risk…

A:

Q: In a sample of 13 randomly selected high school seniors, the mean score on a standardized test was…

A: Given information, x¯=1185s=160.7μ=1016n=13 t value: t=x¯-μsn =1185-1016160.713  =3.79

Q: Pandora, the owner of a food delivery app, knows from experience that the time needed to assemble a…

A:

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A:

Q: (c) Compute the mean and standard deviation, using Hx = np and ox = /np(1 – p). Hx (Round to two…

A:

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A:

Q: A soft-drink machine at a steak house is regulated so that the amount of drink dispensed is…

A: Let X be the amount of drink dispensed that follows Normal distribution with μ=220 milliliters and…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: Let Z-score are normally distributed with mean = 0 and standard deviation = 2 Then,  We will find…

Q: (e) Find the standard deviation o of the distribution of the distance R, with mean 4, where the…

A: From the given information, C(r)=∫0rp(t)dt=1-2r2+2r+1e-2r The probability density function p(t) is,…

Q: Suppose that for a certain population of college students, the mean GPA is 2.84 with a sta deviation…

A: Given that  U=eXV=e2X From the question 9,  EX=2.84σX=0.45

Q: The profits of a mobile company are normally distributed with Mean of R.O (17 x 10) and standard…

A:

Q: The profits of a mobile company are normally distributed with Mean of R.O (D x 10) and standard…

A:

Q: The profits of a mobile company are normally distributed with Mean of R.O (D*10) and standard…

A:

Q: The profits of a mobile company are normally distributed with Mean of R.O (18 x 10) and standard…

A: a. It is given that the profits of a mobile company follow normal distribution with mean (18×10) =…

Q: Suppose the scores on an exam have a mean of 60 with a standard deviation of 10. If one student has…

A: Given,mean(μ)=60standard deviation(σ)=10

Q: When a population is small, it is not practical to determine its mean and standard deviation by…

A: Farmula used

Q: The monthly salaries of the employees at Lyman Limited follow a normal distribution with an average…

A: Given that ;  Mean= 14000 Sigma = 500 Z score = ( x - mean) / sigma

Q: A sample of university students has an average GPA of 2.78 with a standard deviation of 0.45. If GPA…

A: Solution-: Let, X= The GPAs of university students Given: We find, (a) less than 2.30 (b) more than…

Q: 0<x<1 f (x) = {2-x 1<x<2 18x<2 otherwise

A: Chebyshev’s theorem = P (|x - μ| ≤k2 ) ≥1-1k2

Q: Suppose the scores on an exam have a mean of 60 with a standard deviation of 10. If one student has…

A:

Q: Choose the correct answer below. O A. No, because in this situation the distribution is skewed to…

A:

Q: Q5. The amount of sugar (X) contained in 2-kg packets is actually normally distributed with a mean…

A: NOTE: Since we only answer up to 3 subparts , we will answer the first 3. Please resubmit the…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: Sketch the normal curve and shade the area of 0.1606 to the left of "e" under the normal curve.…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: Given,P(-0.7&lt;Z&lt;b)=0.7019

Q: A sample of n = 20 scores has a mean of M = 32 and a standard deviation of s = 6. In this sample,…

A: We have to find z score for x= 28....

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1.If…

A: From the given information, Assume that z-scores are normally distributed with a mean of 0 and a…

Q: (b) Find the standard deviation of p. |(c) Compute an approximation for P6<0.03), which is the…

A:

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: Given,P(z&lt;e)=0.0516

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: GivenMean(μ)=0standard deviation(σ)=1

Q: A population has a mean of u=50 and a standard deviation of O=20 A. Would a score of x=70 be…

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

Q: In a random sample of 7 cell​ phones, the mean full retail price was ​$512.60 and the standard…

A: From the provided information, Sample size (n) = 7 Sample mean (x̅) = $512.60 Sample standard…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A:

Q: The profits of a mobile company are normally distributed with Mean of R.O (D x 10) and standard…

A:

Q: (a) Find the mean of p, where p is the proportion of people in the sample who experience withdrawal…

A: Given that  n=1900 , p=5%=0.05  , q=1-p=1-0.05=0.95

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: The probability value is 0.9866. 1-α=0.9866α=0.0134α2=0.00671-α2=0.9933 The probability 0.9933 would…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If…

A: It is an important part of statistics. It is widely used.

Q: In a sample of 12 randomly selected high school​ seniors, the mean score on a standardized test was…

A: From the provided information, Sample size (n) = 12 Sample mean (x̅) = 1182 Sample standard…

Q: An engineer claims the population mean of a certain batch process is 400 grams. To check his claim…

A: Given info: An engineer claims the population mean of a certain batch process is 400 grams. To check…

Q: a normal distribution has a mean of u=60 with o=15.  if one score is randomly selected from the…

A: let "x" be the score.

Q: A sample of n = 20 scores has a mean of M = 45 and a standard deviation of s = 6.  In this sample,…

A:

Q: The average weight loss in following the ketogenic diet after 30 days of strict compliance is 6…

A:

Q: Suppose the scores on an exam havea mean of 70 with a standard deviation of 10. If one student has a…

A: Mean = 70 Std dev = 10

Q: Assume that the heights of women are normally distributed with a mean of 63 inches and a standard…

A: A z-score is a numerical measurement that describes a values relationship to the mean of a group of…

Q: The profits of a mobile company are normally distributed with Mean of R.O (17x 10) and standard…

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

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.