Assume that both populations are normally distributed. ​(a) Test whether at the level of significance for the given sample data. ​(b) Construct a ​% confidence interval about . Population 1 Population 2 n s ​(a) Test whether at the level of significance for the given sample data. Determine the null and alternative hypothesis for this test.

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?

I’m confused on how to work the pie charts

5. write an equation for the line that is parallel to the given line and that passes through the given point. y = –5x + 3; (–6, 3)