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?

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The footing is never placed below the depth of possible freezing.

Answer the following statement true (T) or false (F)

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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?

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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

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