A section of highway is inspected annually for damage. Based upon specific measurements of frequency and depth of cracks and other such factors, the highway section can be classified as belonging to one of six "states of deterioration." The first state, A, refers to a new condition; the last state, F, refers to a condition requiring complete reconstruction. Damage is progressive, and eventual complete deterioration is certain. However the causes of deterioration relate to weather, traffic, and other random phenomena. Therefore, the lifetime of the highway is uncertain. Past experience suggests that the chances of deteriorating one grade between inspection is one in five, and the chances of deteriorating two grades is one in twenty. Answer the following questions. a. Provide a Markov chain model of the highway deterioration process, under the assumption that no repairs are made. b. Explain how to obtain the

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.

Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10

45(x-7)=90 what would the value of c on this equation be?