?What type of engine is a compression ignition engine?
What will be an ideal response?
?Diesel
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Half sections are used primarily to show the interior construction details of ____ parts.
A. similar B. congruent C. parallel D. symmetrical
A 5:12 pitch on a roof equals ____°.
A. 17 1/2 B. 19 C. 26 1/2 D. 24
To what extent did American diplomacy and economic policy during the 1930s and up to the surprise bombing of Pearl Harbor on December 7, 1941 provoke war with Japan? What might the United States have done to delay or even prevent war with Japan? Why wasn't that done?
What will be an ideal response?
A sample of 75 concrete blocks had a mean mass of38.3 kg with a standard deviation of 0.6 kg.
a. Find a 95% confidence interval for the mean mass of this type of concrete block. b. Find a 99% confidence interval for the mean mass of this type of concrete block. c. An engineer claims that the mean mass is between 38.2 and 38.4 kg. With what level of confidence can this statement be made? d. How many blocks must be sampled so that a 95% confidence interval will specify the mean mass to within ±0.1 kg? e. How many blocks must be sampled so that a 99% confidence interval will specify the mean mass to within ±0.1 kg?