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have to: (a) Write the claim mathematically and identify H0 and Ha (b) Find the standardized test statistic Z and its corresponding area. (c) Find the P-value. (d) Decide whether to reject or fail to reject the null hypothesis. (e) Interpret the decision in the context of the original claim. In Illinois, a random sample of 85 eighth grade students has a mean of score of 265 with a standard Deviation of 55 on a national mathematics assessment test. this test results prompts a state school administrator to declare that the mean score for the state's eighth graders on the examination is more that 260. at a=0.04 is there enough evidence to support the administators claim?
How many square meters of floor space are in a room which has 225.0 square yards of floor space? 1 m = 39.37 in., 1 yard = 36 in.
The value of an car after t years is given by the function V(t)=25,000-1500t. What is the value of the automobile 3 years after it is purchased?
What is the inverse Laplace transform of (s+1)/((s+4)(s+5)(s+3))? Show work using partial fraction expansion and using Heavside method.
Important information about Find the indicated probability, Assume the geometric distribution applies. Use the given probability of success p to find the indicated probability.
In Martian number system, 5 and 8 are the roots of the equation 5X2 - 50X + 125 = 0. Assuming that the number system on Mars developed in the same way as the number system on Earth, how many fingers does a Martian have?
The demand function for a product is given by p= -0.01x^2 - 0.1x + 6 where p is unit price and x is the number in thousands.
What is the ratio of cranberry juice to apple juice?
A textbook store sold a combined total of 348 chemistry and math textbooks in a week. The number of chemistry textbooks sold was three times the number of math textbooks sold. How many textbooks of each type were sold?
Let the sum from n=m to infinity of a_n be a series of real numbers converging to x, and let k be an integer. Then the sum from n=m+k to infinity of a_n-k also converges to x.
an open box is to be constructed from a square piece of material by cutting a 3-inch square from each corner. Find the dimensions of the square piece of material if the box is to have a volume of 363 cubic inches.
A spring has a natural length of 24 cm. If a 28 N force is required to keep it stretched to a length of 36 cm, how much work W is required to stretch it from 24 cm to 32 cm? (Round your answer to the nearest hundredth.)
Use a table of values to estimate the year in which federal funding for Hiv/Aids research reached $18.5billion.ails as possible.
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