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steposvetlana [31]
3 years ago
15

An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars over domestic. Step 2 of 2 : S

uppose a sample of 1496 new car buyers is drawn. Of those sampled, 478 preferred foreign over domestic cars. Using the data, construct the 90% confidence interval for the population proportion of new car buyers who prefer foreign cars over domestic cars. Round your answers to three decimal places.
Mathematics
1 answer:
Darya [45]3 years ago
4 0

Step-by-step explanation:

From given data,

n = 1496

x = 478

Proportion estimate ( p ) = \frac{x}{n}

                                        = \frac{478 }{1496} = 0.3195 ≅ 0.31

Proportion estimate ( p ) = 0.31

∴ The proportion of new car buyers who prefer foreign cars -> 0.31

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