Standardized score of a mean
What is the standardized score of a mean of 230 taken from a sample of 25 from a normal population that has a mean of 211 and standard deviation equal to 46?
A. -2.07
B. -0.41
C. 0.41
D. 2.07
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The magnetic field near the surface of a neutron star has a magnitude of 1.00 108 T. Find the acceleration of an electron near the star moving at 1.09 107 m/s if both v and B are in the same plane, with B directed to the right and v directed 32.7&
On June 30, 2007, semiannual secured bonds having a face valueof $200,000, a life of 10 years and a coupon rate of 7% werepurchased to yield 6%. Assume that $214,878.28 was paid for thebonds.
Explain why this is consistent with our definition of Poisson's ratio equal to the ratio of perpendicular strain to parallel strain.
All sales are made on account at $20 per unit. Sixty percent of the sales are collected in the month of sale; the remaining 40% are collected in the following month.
Find the magnetic force on the electron when the earth's field has a horizontal component of 0.250 G and dips 60.0° below the horizontal (values typical in California).
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The electron gun in a color TV accelerates the electrons through about 25,000 Volts. Estimate the force on such an electron due to the magnetic field of the earth. Hint: The Earth's magnetic field in Virginia has a magnitude of about 5.5 X 10-5 T.
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