Mathematics, 09.07.2019 08:00 schoolemailonlyno1
Aunit of electricity costs 13.2 pence. on average, tanya uses 90 units of electricity per week. she pays for her bill in 12 weeks. how much will her electricity bill be then?
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units
pence.
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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?
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Aunit of electricity costs 13.2 pence. on average, tanya uses 90 units of electricity per week. she...
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