Carpetgrass is considered to be unattractive because it produces many tall, coarse _________________________
Fill in the blank(s) with correct word
seed heads
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Plants grown for their leaves are called foliage plants
What will be an ideal response?
The footing is never placed below the depth of possible freezing.
Answer the following statement true (T) or false (F)
In a sample of 60 electric motors, the average efficiency (inpercent) was 85 and the standard deviation was 2.
a. Find a 95% confidence interval for the mean efficiency. b. Find a 99.5% confidence interval for the mean efficiency. c. What is the confidence level of the interval (84.63,85.37)? d. How many motors must be sampled so that a 95% confidence interval specifies the mean to within±0.35? e. How many motors must be sampled so that a 99.5% confidence interval specifies the mean to within ±0.35?
What is a "chip trap"?
A) Too many chips are allowed to accumulate in the chip pan and on the floor, making a dangerous "chip trap" for the operator B) A wad of stringy chips wrapped around the chuck or workpiece is know as a "chip trap" C) A "chip trap" is simply a chip disposal device D) An improperly ground tool or one that has been re ground many times often has a "chip trap" that prevents a smooth flow of chips across the tool face