What is the domain of the relation graphed below? On a coordinate plane, an ellipse intercepts the x-axis at (negative 4, 0) and (4, 0) and intercepts the y-axis at (0, 1) and (0, negative 1).

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?