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Below is a data table from a survey of 12 random car owners that were asked...

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Statistics

Below is a data table from a survey of 12 random car owners thatwere asked about their typical monthly expenses in dollars ongasoline.

210 160 43 255 176 135 221 359 380 405 391 477

  1. (a) Is there evidence at the 5% significance level to suggestthe mean monthly gasoline expense for all car owners is less than$200?

  2. (b) Interpret the P-value in the context of this test.

  3. (c) Explain what a Type I error would mean in the context ofthis test.

  4. (d) Explain what a Type II error would mean in the context ofthis test.

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