5) An educational researcher wants to assess if the average IQ score of a sample of 40 students is significantly different from the population mean IQ of 100. The sample has a mean IQ of 105 and a standard deviation of 12. Perform a one-sample t-test and interpret the results.

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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: e) -1+ is greater than -1, so we will take the second piece of the function

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A: →Use trigonometric relation to find the value of x.                       sinθ…

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

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A: This question is about application of complimentary angles

A: We have given the scalar factor i.e . (x,y)=(1.5x,1.5y)

A: Step 1:For a triathlete as well as it was loosely more expedient to aim for a balanced level of…