In Comparing a 0

question 61

Multiple Choice

In comparing a 0.25 molality aqueous NaCl solution to a 0.25 molality aqueous CaCl₂ solution:

• A)the NaCl solution has the higher boiling point and the lower freezing point.
• B)the CaCl₂ solution has the higher boiling point and the lower freezing point.
• C)the NaCl solution has the higher boiling point and the CaCl₂ solution has the lower freezing point.
• D)the CaCl₂ solution has the higher boiling point and the NaCl solution has the lower freezing point.
• E)both solutions have the same boiling point and the same freezing point.

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Definitions:

Normally Distributed

Describing a distribution that follows a normal curve, with most observations clustering around the mean and tapering off symmetrically towards the extremes.

Sign Test

A non-parametric test used to evaluate the difference between the median of a paired sample and a hypothesized value.

Identical Medians

The statistical assessment that two or more groups have the same median value in their data distributions.

Identical Probability Distributions

Probability distributions that are exactly the same in terms of their statistical properties such as mean, variance, and skewness.