In 1996, 5454% of high school teachers felt it was a serious problem that high school students were not being attentive enough in the classroom. A recent survey found that 312312 of 600600 high school teachers felt it was a serious problem that high school students were not being attentive enough in the classroom. Do high school teachers feel differently today than they did in 1996? (a) What does it mean to make a Type II error for this test? (b) If the researcher decides to test this hypothesis at the alphaαequals=0.10 level of significance, compute the probability of making a Type II error, betaβ, if the true population proportion is 0.520.52. What is the power of the test? (c) Redo part (b) if the true population proportion is 0.500.50.

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step-by-step explanation: vsfdvsfvd

x = 23.78

step-by-step explanation:

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.