(b) halim works 5 days a week. he needs to wear blue working uniform for 4 days of working in a week. for the rest of his working day, he has to wear white working uniform.
represent total number of days, halim wears white working uniform for 2 weeks.
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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?