subject
Engineering, 07.05.2021 15:40 aesthvx44

The nicotine content in cigarettes is important for any brand of cigarettes. A company advertises that the mean nicotine content of their brand cigarette is 1.6 milligrams. A customer organization believes that true mean nicotine content is more than 1.6 milligram. Their examination on a randomly selected 180 cigarettes of the brand yields a sample mean 1.62 milligrams and standard deviation 0.1 milligrams. Conduct an appropriate hypothesis test at a 0.01 level of significance. a) State the appropriate null and alternative hypotheses of the test in terms of the pop- ulation mean nicotine content ji to address the customer organization's concern?
b) What is the rejection region for your test in (a)?
c) Calculate the test statistic.
d) What is the p-value of this test?
e) Based on your results, what is your conclusion regarding the customer organization's concern?

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Which one from below is not one of the reasons of planning failures? (clo3) a)-planner is careless. b-planner spend less time in the field but more time on the desk c)-planner is not qualified d)-planner does not have sufficient time to properly plan
Answers: 3
question
Engineering, 04.07.2019 18:20
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
question
Engineering, 04.07.2019 19:20
Determine the time of the day and month of the year at which the peak sensible cooling load occurs for a top floor, north-eastern corner room of an office building in durban for the following conditions: floor area: 8 x 8 x 3 m east and north walls: 115 mm face brick (outside), 20 mm air space, 115 mm ordinary brick (inside) with 15 mm plaster roof construction: suspended plasterboard ceiling, 450 mm air space, 150 mm concrete, 75mm screed, waterproofing no heat transfer across other surfaces window area 3x 1,5 m high in north wall only. ordinary glass with venetian blinds. lights and occupants : from 07: 00 to 18: 00 average light density: 25 w/m2 number of occupants : 5 seated, light office work room temperature 24Β°c
Answers: 3
question
Engineering, 06.07.2019 02:30
An electric motor is used to drive a power press which makes steel turning moment diagrams 323 pressings from a metal sheet. the motor runs at a mean speed of 50 rev/s. the torque required is 10.0nm for 0.2s, followed by 1.0nm for0.3 s with this sequence then being repeated. what is the minimum power required of the motor and the moment of incrtia required for the t1ywhcel if the speed fluctuations are to be restricted to 1.5%?
Answers: 3
You know the right answer?
The nicotine content in cigarettes is important for any brand of cigarettes. A company advertises th...
Questions
question
Mathematics, 12.11.2020 06:10
question
Biology, 12.11.2020 06:10
question
Mathematics, 12.11.2020 06:10
question
Mathematics, 12.11.2020 06:10
Questions on the website: 13722361