Farm Sizes Ten years ago, the average acreage of farms in a certain geographic region was 65 acres. The standard deviation of the population was 7 acres. A recent study consisting of 22 randomly selected farms showed that the average was 63.2 acres per farm. Test the claim, at a = 0.10, that the average has not changed by finding the P-value for the test. Assume that o has not changed and the variable is normally distributed.

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Farm Sizes Ten years ago, the average acreage of farms in a certain geographic region was 65 acres.
The standard deviation of the population was 7 acres. A recent study consisting of 22 randomly
selected farms showed that the average was 63.2 acres per farm. Test the claim, at a = 0.10, that the
average has not changed by finding the P-value for the test. Assume that o has not changed and the
variable is normally distributed.
Transcribed Image Text:Farm Sizes Ten years ago, the average acreage of farms in a certain geographic region was 65 acres. The standard deviation of the population was 7 acres. A recent study consisting of 22 randomly selected farms showed that the average was 63.2 acres per farm. Test the claim, at a = 0.10, that the average has not changed by finding the P-value for the test. Assume that o has not changed and the variable is normally distributed.
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