The Moisture in a Wet Mix of Cement Was Considered

question 84

Multiple Choice

The moisture in a wet mix of cement was considered to have an effect on the denseness of the finished product.The moisture of the mix was controlled at various levels,and the denseness of the finished product was measured.The data were entered into SPSS,and the following output was generated. The standard error for the slope is reported to be 0.90.Which of the following interpretations of this standard error is correct?

• A)If this experiment were repeated many times,we would estimate that our estimated slope of 5.0 is about 0.90 away from the true slope  ₁,on average.
• B)If this experiment were repeated many times,we would estimate the resulting estimated slopes to differ from the true slope  ₁ by about 0.90,on average.
• C)If this experiment were repeated many times,we would estimate the estimated slope of 5.0 to differ from the true slope  ₁ by about 0.90.
• D)If this experiment were repeated many times,we would estimate the average distance of the resulting estimated slopes from the hypothesized value of 0 to be about 0.90.

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Definitions:

Standard Deviation

A measure of the dispersion of a set of data from its mean, indicating how spread out the data points are.

Variability

A measure of how spread out or dispersed the values in a dataset are.

Bimodal

Bimodal describes a distribution having two different modes, which are the most frequently occurring data points in a dataset.

Distribution

The way in which values are spread or distributed across a range in a dataset.