8) A car manufacturer claims that a new model of their cars gets an average of 30 miles per gallon (mpg) on the highway. A random sample of 12 of these cars is tested, and they yield an average of 28 mpg with a sample standard deviation of 2 mpg. Is there enough evidence to challenge the manufacturer's claim at a significance level of 0.01?

Q: 4. Evaluate the following limit. Vr3 +9 2x2 -5x +3 if x 3,

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A: Given,         ∫2416-25n2dn

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A: Let μ denote the population mean and x⎯⎯ denotes the sample mean. Then, μ=12.8 and x⎯⎯=12.2 Let n be…

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A: Clearly the line is passing through the origin.

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A: Consider the given expression, If we substitute  in the expression we get  form. so, use L-hospital…

Q: thank you

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Q: Statements 1. = -2 x+7 %3D 3 2. x + 7 = -6 3. x = -13

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Q: Please answer all.

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