If x is an even number, the function f(x) = 2x − 1 gives an odd number. identify the set of odd numbers corresponding to this set of even numbers: {0, 2, 4, 6, 8}.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?