Sienna has 20 toy dolls. she wants to put the same number of tolls on each of 5 shelves. how many toy dolls will sienna put on each shelf? write an equation using n to find unknown factor. then explain how you found the unknown factor.

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?