What makes a battery "low maintenance" or "maintenance free"?
A) The material that is used to construct the grids
B) The battery plates are smaller, making more room for additional electrolytes.
C) The plates are constructed of different metals.
D) The electrolyte is hydrochloric acid solution.
A
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A random sample will be drawn from a normal distribution, for the purpose of estimating the population meanµ. Since µ is the median as well as the mean, it seems that both the sample median m and the sample mean 
are reasonable estimators. This exercise is designed to determine which of these estimators has the smaller uncertainty.
a. Generate a large number (at least 1000) samples of size 5 from a N(0, 1) distribution.
b. Compute the sample medians 
for the 1000 samples.
c. Compute the mean m and the standard deviation of 
d. Compute the sample means 
for the 1000 samples.
e. Compute the mean and standard deviation 
f. The true value of µ is 0. Estimate the bias and uncertainty 
in m.
g. Estimate the bias and uncertainty 
. Is your bias estimate close to 0? Explain why it should be. Is your uncertainty estimate close to 
? Explain why it should be.
Technician A says that the wrong spark plugs can cause preignition. Technician B says that preignition can possibly lead to engine damage. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Isometric drawings are primarily used in _____ drawings.
A. foundation and grading B. exterior and landscape C. floor and ceiling D. cabinet and plumbing
Explain how layout sheets are used in isometric sketches.
What will be an ideal response?