Aline passes through point (3, 7) and has a slope of 3/4 .

the equation of the line is{ y = 3/4x + 19/4} or {y = 3x - 19} .

if point a(x, 5) lies on the line, the value of x is
{33 or 1/3}

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?