An employee at an automobile factory wants to know the true diameter of car rotors for a specific make and model of car. (Assume that the rotors are normally distributed.) Taking a sample of 10 rotors, the mean of the rotors is 22.3 inches. a) If it is known that the population standard deviation of these rotors is .2 inches, find a 98% confidence interval for the true diameter of the rotors

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Fatima plans to spend at least $15 and at most $20 dollars on sketch pads and pencils. if she buys 2 sketchpads, how many pemcils can she buy while staying in her price range? fatima can buy between and pencils. ? (type whole numbers. use ascending? order.)

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?