10. algebra mary rose pays her auto insurance premiums

quarterly. her annual premium last year was $1,640.00.

when she increased her deductibles in the middle of the year,

her quarterly premium was reduced by $45.00. what was her

quarterly premium for each of the last two quarters of last year?

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?