Is the noise level of area 1 greater than 60 decibels

Assignment Help Civil Engineering
Reference no: EM13298248

Office workers complain that the noise level in their office Area 1 is greater than that in the company's other office Area 2. Six measurements are made on different days in each area, with the following results:
Area 1: 61, 66, 65, 72, 59, 68 decibels
Area 2: 64, 56, 53, 61, 63, 51 decibels
(a) Can the workers of Area 1 legitimately conclude that their Area 1 is noisier?
(b) Is the noise level of Area 1 greater than 60 decibels?

Reference no: EM13298248

Questions Cloud

Calculate maximum allowable shear force v max for the girder : is fabricated of two 300 mm X 25 mm flange plates and a 800 mm X 16 mm web plate. the plates are joined by four fillet welds that run continuously for the length of the girder. each weld has an allowable load in shear of 920 kN/m.
Explain an equilibrium constant kp of 144 at equlibrium : At 25 C the decomposition of dinitrogen tetra oxide N2O4(g) 2NO2(g) has an equilibrium constant Kp of .144. At Equlibrium, the total pressure of the system is .0758 atm. What is the partial pressure of each gas
Formulate problem as an ip and find optimal solution : The Record-a-Song company has contracted with a rising star to record eight songs. The sizes in MB of the different songs are 8, 3, 5, 5, 9, 6, 7, and 12, respectively. Record-a-Song uses two CDs for recording. Each CD has a capacity of 30 MB.
Estimate the moment of inertia of disk : Two disks are rotating about the same axis. Disk A has a moment of inertia of 3.67 kg·m2 and an angular velocity of +3.04 rad/s. What is the moment of inertia of disk B
Is the noise level of area 1 greater than 60 decibels : Office workers complain that the noise level in their office Area 1 is greater than that in the company's other office Area 2. Six measurements are made on different days in each area, with the following results
Explain what will be the concentration of ca2+ when ag2so4 : A solution contains 0.0470 M Ca2+ and 0.0292 M Ag+. Can 99.00% of Ca2+ be precipitated by sulfate, without precipitating Ag+ (For CaSO4, Ksp = 2.4 10-5. For Ag2SO4, Ksp = 1.5 10-5.) Yes or No What will be the concentration of Ca2+ when Ag2SO4 begi..
At what wind speed will this roof blow outward : The construction of a flat rectangular roof (5.15 m × 7.44 m) allows it to withstand a maximum net outward force of of 2.33 × 104 N. At what wind speed will this roof blow outward
Order of the salespeople on the list is relevant : Assume that the order of the salespeople on the list is relevant.
What volume of water per second leaks into the ship : A ship is floating on a lake. Its hold is the interior space beneath its deck; the hold is empty and is open to the atmosphere. What volume of water per second leaks into the ship

Reviews

Write a Review

Civil Engineering Questions & Answers

  Find out the magnitude of the contraction scour

Bridge scour, Determine the magnitude of the contraction scour depth given the following information about the channel and bridge

  How many moles of aluminum

How many moles of aluminum do 5.2×1024 aluminum atoms represent?

  Concrete dam retaining water

A concrete dam retaining water has a specific weight of concrete of 23.5kn/m3, what is the factor of safety against sliding & overturning and pressure intensity on the base if coefficient of friction is 0.45

  What average force was exerted on the ball

After falling from rest from a height of 32 m, a 0.45 kg ball rebounds upward, reaching a height of 22 m. If the contact between ball and ground lasted 1.5 ms, what average force was exerted on the ball?

  Use work and energy to find paul speed

Susan's 12.0 baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30 degrees above the floor. The tension is a constant 31.0 and the coefficient of friction is 0.210. Use work and energy to find Paul's ..

  Find specific volume of the tank at 70degf and 200 psi

A cylindrical pressure tank has internal dimensions of 14.0 inches diameter, and 36 inches length from end to end. Max. recommended pressure at 70degF is 200 PSI. The cylinder has a safety relief valve which is set at 250 PSI.

  Determine the total resultant force

in inclined circular gate with water on one side shown in the figure. determine the total resultant force acting on the gate and the total location of center pressure.

  Determine the practical moment strength phi-msubn for steel

determine the practical moment strength phi x Msubn for a rectangular reinforced concrete cross section having a width (b of 13 in.) and an effective depth (d of 24 in.) The tension reinforcing steel is four no# 8 bars.

  What is the width of the second floor

A cross section of a cottage, 20 ft wide, is an isosceles triangle. If the slope of a side is 1.75 and there is a second floor 8 ft above the ground floor, what is the width of the second floor?

  Conductive heat loss through the furnace wall

Assuming unit surface area, find the conductive heat loss through the furnace wall and the temperature at the interface of the fire clay and red brick.

  What should be the new volume of the lake

Suppose that the distance from the lake outlet to the withdrawal cannot be more than 20 mi. What should be the new volume of the lake?

  What is the design speed of he curve

An equal-tangent crest vertical curve is designed with a PVI at station 110+00 and a PVC at station 107+43.3. if the high point is station 110+75.5 what is the design speed of he curve?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd