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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Q: W 4. A cell phone company claims that the average time a person spends on their phone is 12.8 hours…

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

Q: What Is the equation of the graph? Oy= - x O y= 4 x OY=4x

A: Clearly the line is passing through the origin.

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Q: e. lim f(1) f. lim f(r) 2 g. lim f(1)

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…

Q: Calculate the limit algebraically: x³ + 8 lim x→-2 x² + 7x + 10

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

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Q: Can you please help

A: This question is about application of complimentary angles

Q: 3. (z, y)(1.5x, 1.5y) A' will be located at ( B' will be located at ( C' will be located at (

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

Q: Please help

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