An article in fire technology describes the investigation of two different foam expanding agents that can be used in the nozzle of fire fighting spray equipment. a random sample of five observations with an aqueous film forming foam had a sample mean of 4.340 and a standard deviation of 0.508. a random sample of five observations with alcohol type concentrates had a sample mean of 7.091 and a standard deviation of 0.430. assume that both populations are well represented by normal distribution with the same standard deviations

(a) is there evidence to support the claim that there is no difference in mean foam expansion of these two agents. use a fixed level test with alpha=0.10

(b) calculate the p-value for this test (using alpha = 0.05).

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!

16 is the absolute value

step-by-step explanation:

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.

5

step-by-step explanation: