stats complete quiz - 1.The annual Salary of an electrical...

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1.The annual Salary of an electrical engineer is given in terms of the years of experience by the table below. Find the equation of linear regression for the above data and obtain the expected salary for an engineer with 45 years of experience. Round to the nearest $100. a.)97,100 b.)88,300 c.)56,700 d.)92,800 2.An airline company found that 80% of their flights arrive to their destination on time. We are interested in selecting a sample of 5 flights and calculating the probability of all of them getting to their destination on time. Choose the best answer of the following: 3.A test is composed of six multiple choice questions where each question has 4 choices. If the answer choices for each question are equally likely, find the probability of answering less than 2 questions correctly. 4. It has been recorded that the average number of errors in a newspaper is 4 mistakes per page. What is the probability of having 0 or one error per page? 5. The mode height of the players on a high school basketball team is 68 inches. What does this tell you about the typical height of a player on this team? a.)Half the players are taller than 68 inches while half are shorter b.)The average height of the players on the team is 68 inches c.)More players are 68 inches tall than any other height. d.)The height of all the players is not very consistent because 68 is such a large number 6.Using the standard normal distribution, find the probability that z is less than 1.49 a.)0.0375 b.)0.9625 c.)0.9319 d)0.0384 7. The mean age of school bus drivers in Denver is claimed to be 56.9 years. A hypothesis test is performed at a level of significance of 0.05 with a P-value of 0.03. Choose the best interpretation of the hypothesis test. the mean age of bus drivers in Denver is 56.9 years.
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