Regression, Correlation and Hypothesis Testing

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Question 142

The surface area $S$ , in $mm2\text{mm}^2$ , of a metallic crystal growing in a laboratory environment is monitored over time. The surface area is modelled by the equation

log_{10} S = 0.85 + 0.072t

where $t\,$ is the time in hours after the crystal began to form.

Use the equation of the model to answer parts (a) and (b).

Find the initial surface area of the crystal, giving your answer to 2 decimal places.

[2]

After $T\,$ hours, the surface area reaches 120 mm². Find the value of $T$ , giving your answer to 2 decimal places.

[3]

The surface area $S$ , in $mm2\text{mm}^2$ , of a metallic crystal growing in a laboratory environment is monitored over time. The surface area is modelled by the equation

log_{10} S = 0.85 + 0.072t

where $t\,$ is the time in hours after the crystal began to form.

Use the equation of the model to answer parts (a) and (b).

Regression, Correlation and Hypothesis Testing

Question 142

Regression, Correlation and Hypothesis Testing Questions

Regression, Correlation and Hypothesis Testing

Question 142

Regression, Correlation and Hypothesis Testing Questions