Sales delay is the elapsed time between the manufacture of a product and its sale. According an article it is quite common for investigators to model sales delay using a lognormal distribution. For a particular product, the cited article proposes this distribution with parameter values μ = 2.09 and ² = 0.07 (here the unit for delay is months). LUSE SALT (a) What are the variance and standard deviation of delay time? (Round your answers to two decimal places.) variance months² months standard deviation (b) What is the probability that delay time exceeds 12 months? (Round your answer to four decimal places.) (c) What is the probability that delay time is within one standard deviation of its mean value? (Round your answer to four decimal places.)

Sales delay is the elapsed time between the manufacture of a product and its sale. According an article it is quite common for investigators to model sales delay using a lognormal distribution. For a particular product, the cited article proposes this distribution with parameter values μ = 2.09 and ² = 0.07 (here the unit for delay is months). LUSE SALT (a) What are the variance and standard deviation of delay time? (Round your answers to two decimal places.) variance months² months standard deviation (b) What is the probability that delay time exceeds 12 months? (Round your answer to four decimal places.) (c) What is the probability that delay time is within one standard deviation of its mean value? (Round your answer to four decimal places.)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: Although these quantities vary from one type of cell to another, a cell can be 1.9 um in diameter…

A: The outer radius of the cell wall is The thickness of the cell wall is The density of the pure water…

Q: Calculate the value of the error with one decimal place for: z = x・y where X = 25 +/- 8% Y and = 35…

Q: 1. A student measures the length of a table with a meter stick and the average yields a result of…

A: Answer:- (a) It is a symmetric error.

Q: the A partly-full paint can has 0.493 U.S. gallons of paint left in it. (a) What is the volume of…

Q: A builder wants to install wall-to-wall carpeting in a living room of length 8.84 m and width 6.2 m.…

Q: A house’s electricity use, over a one day period, is modelled by E(t) = t + sin(t) (kW), where t is…

A: Power=Work/time Energy=Work=power×time

Q: Suppose 1.5 cubic meter of oil is spilled into the ocean. Find the area of the resulting slick,…

A: Finding the total area occupied by the spilled oil.Given information:The volume of the oil spilled…

Q: The measurement error is defined as AX=X-Xo where Xo is the true value of a physical quantity. X is…

A: The true value of the physical quantity is X0 and the measured value of physical quantity is X.…

Q: Estimate the number of breaths taken by a human being during an average lifetime. (Hint: Show…

Q: Problem 2: A rectangular box is h= 14 inches in height, w = 26.5 cm wide, and L = 1.9 yards long.…

Q: Iron has a mass of 7.87 g per cubic centimeter of volume, and the mass of an iron atom is 9.27 ×…

Q: A partly-full paint can has 0.711 U.S. gallons of paint left in it. (a) What is the volume of the…

A: Volume of paint = 0.711 US gallons

Q: Working the answers from the previous question, what would be the relative uncertainty of the area?…

A: Given: Length of the wooden board L=35.7 cm Width of the wooden board W=28.6 cm Uncertainty in…

Q: Kinetic energy KE (Chapter 5) has dimensions kg · m2/s2 . It can be written in terms of the momentum…

A: a. write the equation for kinetic energy and solve for momentum.

Q: You measure the mass of your phone to be 161 grams, but the manufacturer's website lists it as 163.9…

A: Given data: Actual mass (m) = 161 g Expected mass (m') = 163.9 g Required: The percentage error

Q: Estimate the number of tennis ball that would fit into a room that is 4m long, 4m wide, and 3m high.…

Q: You find an old book and decide to estimate the thickness of one of the sheets or leafs. Neglecting…

A: Given:-The all the sheets of the book are 3 inches thick, Neglecting the front and back cover book…

Q: Problem 12: In this problem, the symbols M, L, and T represent the dimensions mass, length, and…

Q: A rectangle has a length of (2.3 ± 0.1) m and a width of (1.4 ± 0.2) m. Calculate the area and the…

Q: measuring the changes in volume and surface area of worms. Two worms labeled A and B st the…

A: Given, Both worms A and B have same initial volume and surface area. At the end of study ,the…

Q: The length and width of a rectangular room are measured to be 3.885 ± 0.0065 m and 3.2 ± 0.0045 m.…

A: Given The length of a rectangular room = l = 3.885 ± 0.0065 m The width a rectangular room = b = 3.2…

Q: The depth of the ocean is sometimes measured in fathoms (1 fathom = 6 feet). Distance on the surface…

Q: three dimensions always have a particular relationship defined by the variable x.

Q: The length and width of a rectangular room are measured to be 3.885 ± 0.0065 m and 3.2 ± 0.0045 m.…

A: Please see the answer

Q: A heavy rainstorm dumps a total of 73 cm of rain on a rectangular shaped city area measuring 9 km by…

Concept explainers

Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.

Question

(d) What is the median of the delay time distribution? (Round your answer to two decimal places.)
months
(e) What is the 99th percentile of the delay time distribution? (Round your answer to two decimal places.)
months
(f) Among 10 randomly selected such items, how many would you expect to have a delay time exceeding 7 months? (Round
your answer to three decimal places.)
items

Sales delay is the elapsed time between the manufacture of a product and its sale. According an article it is quite common for
investigators to model sales delay using a lognormal distribution. For a particular product, the cited article proposes this
distribution with parameter values μ = 2.09 and ² = 0.07 (here the unit for delay is months).
LUSE SALT
(a) What are the variance and standard deviation of delay time? (Round your answers to two decimal places.)
months²
months
variance
standard deviation
(b) What is the probability that delay time exceeds 12 months? (Round your answer to four decimal places.)
(c) What is the probability that delay time is within one standard deviation of its mean value? (Round your answer to four
decimal places.)

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

The radius of an atom of gold (Au) is about 1.35 Å. How many gold atoms would have to be lined up to span 4.0 mm? Express your answer using two significant figures.
A) A pyramid has a height of 488 ft and its base covers an area of 10.0 acres. The volume of a pyramid is given by the expression: V=1/3Bh, where B is the area of the base and h is the height. Find the volume of the pyramid in cubic meters. (1 acre = 43,560ft^2). B) What If? If the height of the pyramid were increased to 525 ft and the height to base area ratio of the pyramid were kept constant, by what percentage would the volume of the pyramid increase?
(a) How many significant figures are in the numbers 999.0 and 1000.0? 999.01000.0 (b) If the uncertainty in each number is 10, what is the percent uncertainty in each? (Give your answer to 4 significant figures.) 999.0 %1000.0 % (c) Which is a more meaningful way to express the accuracy of these two numbers, significant figures or percent uncertainties?
(a) What is the volume (in km3) of Avogadro’s number of sand grains if each grain is a cube and has sides that are 1.0 mm long? (b) How many kilometers of beaches in length would this cover if the beach averages 100 m in width and 10.0 m in depth? Neglect air spaces between grains.
Determine the absolute uncertainty for the calculated value in the following scenarios. Express as (computed result) ± (absolute uncertainty) (units). You measure the volume of a stainless steel sphere by placing it into a100 mL graduated cylinder with an uncertainty of 1 mL, with 20 mL ofwater initially. After the sphere settles, the graduated cylinder now reads22 mL. What is the volume with uncertainty? Please use the formula I posted ! Thank you!
A rectangle has a length of (5.1 ± 0.2) m and a width of (2.3 ± 0.1) m. Calculate: (a) the area and (b) the perimeter of the rectangle, Give the uncertainty in each value.
Carry out the following arithmetic operations. (Enter your answers to the correct number of significant figures.) (a) the sum of the measured values 521, 34.6, 0.90, and 9.0 (b) the product 0.0052 ✕ 425.6 Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. (c) the product 17.30 ✕ π
- Your answer is partially correct. A partly-full paint can has 0.515 U.S. gallons of paint left in it. (a) What is the volume of the paint, in cubic meters? (b) If all the remaining paint is used to coat a wall evenly (wall area = 12.1 m²), how thick is the layer of wet paint? Give your answer in meters. (a) Number i 1.949 (b) Number i 312.1 Units Units m^3 m^2
A study fonds that the metabolic rate of mamals is proportional to the mass of the mamal carried to the exponent of (3/4). By what factor does the metabolic rate of a 70.0 kg human exceed that of a 6.30 kg cat?\ 70.0 3/4 kg = 6.09 6.303/4 kg I set up the values as a ratio and came up with 6.09. OK, I answered my own question. That is the correct answer.
A person's blood pressure is measured to be: 115 ± 7 mm Hg. What is its percent uncertainty? (Express your answer to the correct number of significant figures and proper units. Use unrounded values in your calculations.)
Can you please help me with this question
the average density of an atom is approximately 103 kg/m3. The nucleus of an atom has a radius about 10-5 times that of the entire atom, and contains nearly all the mass of the atom. What is the approximate density, in kilograms per cubic meter, of a nucleus?