Scenario 3 After an extensive advertising campaign, the manager of a company wan

Question

Scenario 3 After an extensive advertising campaign, the manager of a company wants to estimate the proportion of potential customers that recognize a new product. She samples 120 potential consumers and finds that 54 recognize this product. She wants to use this sample information to determine various confidence intervals. Referring to Scenario 3, which statistical table is needed to determine a particular confidence interval?

Chi-Square “Goodness of Fit” Table

F Table

Critical Values of t Table

Z Table

Explanation / Answer

Here we need to develop a confidence interval for proportions and hence, we will be using z confidence interval.

So,

Z table will be required.

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