How many different arrangements are there of 11flags if 4 are orange, 2 are yellow, and 5 are green?

Is the answer just 11! Since the order of the flags doesn’t matter and it’s just put into an order?

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?