We Sampled 100 Men and 100 Women and Asked: ʺDo

question 76

Multiple Choice

We sampled 100 men and 100 women and asked: ʺDo you think the environment is a major concern?ʺ Of those sampled, 67 women and 53 men responded that they believed it is. For the
Confidence interval procedure to work properly, what additional assumptions must be satisfied?

• A)The population variances are equal.
• B)Both samples were randomly and independently selected from their respective populations.
• C)Both populations have approximate normal distributions.
• D)All of the above are necessary.

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Definitions:

Novation

The process of replacing one obligation with another by mutual agreement.

Entire Agreement

A clause in a contract that declares the contract to be the complete and final agreement between the parties, superseding all prior negotiations, promises, or representations.

Privity of Contract

The principle that a contract directly affects and grants enforceable rights only to the parties involved in the contract agreement.

Promissory Estoppel

A legal principle that prevents a party from going back on a promise, even if it was made without formal consideration, when someone else has reasonably relied on that promise.