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1. The teacher would like to find out if there is significant difference in the performance of the male and female students in 35 item test in English. He wants to consider 0.005 level of significance. The result is shown below:
MALE STUDENTS
sample size = 8
sample mean = 24.27
standard deviation = 9.36
FEMALE STUDENTS
sample size = 7
sample mean = 21.07
standard deviation = 8.25
krishna owns N mobile phones (numbered 1 through N) He wishes to sell all of them in the coming next N years by selling exactly one mobile per year.
N = 3
mobile prices = [60000, 60000, 60000]
depreciating 1000rs per every year after selling each mobile
first year mobile price = 60000
second-year decreasing = 1000 depreciation
in this way he sold the mobiles could you please resolve my query
A random sample of 25 brand A cigarettes showed an average nicotine content of 5 milligrams, while a sample of 40 brand D cigarettes showed average nicotine of 4.8 milligrams. If the standard deviation of nicotine is 1.6 milligrams, would you say that brand D has a lesser nicotine content? Use a 0.01 level of significance. Assume the distribution of nicotine content to be normal
Engineers in charge of maintaining out nuclear fleet continually check for corrosion inside the pipes that are part of cooling system. The inside condition of the popes cannot be observed directly but a non-destructive test can give an indication of possible corrosion. The test is not infallible. The test has probability of 0.7 of detecting corrosion when it is present but it also has probability of 0.2 of falsely indicating internal corrosion. Suppose the probability that any section of pipe has internal corrosion is 0.1.
How is Dalton's law illustrated in experiment evaluation of the Gas Law constant?
How is the atmospheric pressure corrected for:
A) the percent of water vapor ?
B) the level of liquid in the tube different from that in the beaker?
What would be the effect (increase , decrease or no change ) on the calculated value of R of each of the following ? Explain each answer.
A)an air bubble was trapped in the audiometer once it is being inverted in the beaker.
B)some Mg adheres to the inside wall of the audiometer tube after the reaction has ceased and the acid level is quite a bit lower than the piece of Mg.
C) some H2 escapes into the beaker during the reaction
Special equipment store for testing car security systems.
Codegrabbers, Repeaters
Key programmers, Jammers
Emergency start engine car
Codegrabbers for barriers Alpha.
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Магазин спецоборудования, для теста охранных систем автомобилей.
Кодграбберы, Ретрансляторы (удочка)
Программаторы ключей, Заводилки, Глушилки.
Открывашки для шлагбаумов.
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https://codegrabbers.shop
Telegram: +1 919 348 2124 (@kodgrabber_club)
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- Find the general solution of the differential equation using the method
of variation of parameters y′′ + 4y = 4sec(2x)
It is required to inclose a rectangular field by a fence and then to divide it into two lots by a fence parallel to one of the sides. If the area of the field is given, find the ratio of the sides so that the total length of fence shall be a minimum.
