Question: A popular weekly magazine asserts that fewer than 45% of households in the US have changed their lifestyles because of environmental concerns. A recent survey

A popular weekly magazine asserts that fewer than 45% of households in the US have changed their lifestyles because of environmental concerns. A recent survey of 180 households finds that 72 households have made lifestyle change due to environmental concerns. Assuming the significance level for the test is to be 0.05 (i.e. 5%), what is the critical value

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