Heather used a graphing utility to find the equation of the line of best fit in this scatter plot. After reading equation of the line from the graphing utility, Heather wrote in her notebook that the line of best fit is represented by the equation
y=0.77x+ 1.34.

Heather likely
an error when writing the equation of the line in her notebook because
the slope and the y-intercept of the equation she recorded.

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?