How did the emergence of railroads and the telegraph contribute to the growth of
agribusiness?
a. Improved the infrastructure for conducting business
b. Enlarged the definition of “local market.”
c. Allowed prices to be set by markets located at the nexus of railroad lines and
transmitted quickly to “middlemen.”
d. Redefined the market radius in terms of the “iron horse” instead of the farmer’s
horse.
e. All of the above.
E
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What problems may occur in an endothermic reaction process when there is excessive cooling?
A. Melting of polymers B. Lower viscosities C. Crystallization in liquids D. Runaway reaction
In a sample of 80 light bulbs, the mean lifetime was 1217 hours with a standard deviation of 52 hours.
a. Find a 95% confidence interval for the mean lifetime of this type of light bulb. b. Find a 98% confidence interval for the mean lifetime of this type of light bulb. c. An engineer claims that the mean lifetime is between 1208 and 1226 hours. With what level of confidence can this statement be made? d. How many light bulbs must be sampled so that a 95% confidence interval will specify the mean lifetime to within ±8 hours? e. How many light bulbs must be sampled so that a 98% confidence interval will specify the mean lifetime to within ±8 hours?
OSHA standards play a role in emergency prevention and should be considered when developing emergency plans
Indicate whether the statement is true or false
What regulates the flow of chilled water through the cooling coil?
A) a control valve B) an electric fan C) the condenser D) the input temperature