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Automatic sprinkling systems are required in paint spray areas. 

Which of the following is used to extinguish LPG fires?

from the previous tableWhat is the value of Syy (please write 2 digits after the decimal, for example 2.56 or – 2.56)

from the previous tableWhat is the value of Sxy (please write 2 digits after the decimal, for example 2.56 or – 2.56)

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1.  . It is desired to test the null hypothesis µ = 40 against the alternative hypothesis µ > 40 on the basis of a random sample from a population with standard deviation 5.                        If the probability of a Type I error is to be 0.04 and the probability of Type II error is to be 0.06 for µ = 39, find the required size of the sample.    (4 points)      2.    A lighting company claims that their LED light bulbs have an average lifespan of at most 15,000 hours. To test this claim, a random sample of 15 bulbs is selected, and their lifespans are recorded. The sample mean is found to be 14,800 hours with a standard deviation of 500 hours. Conduct a hypothesis test at a significance level of 0.05 to determine if the claim is supported. What distribution are you using and why?    (6 points)

Water enters root cells when their osmotic pressure is lower than that of the soil.

Match the plant growth and movement respnses with its definition.

Which plant type has large, conspicuous megaphylls are called fronds.

Match the plant tissue with it description.