Mathematics, 25.06.2019 06:30 ahrensy8444
The owner of a local health food store recently started a new ad campaign to attract more business and wants to test whether average daily sales have increased. historically average daily sales were approximately $2,700. after the ad campaign, the owner took another random sample of forty-five days and found that average daily sales were $2,984 with a standard deviation of approximately $585. calculate the upper bound of the 95% range of likely sample means for this one-sided hypothesis test using the confidence. norm function.
Answers: 1
Mathematics, 20.06.2019 18:04
Ineed asap graph the system of equations 2x+y=5; 14+7y=35
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Mathematics, 21.06.2019 16:20
The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.
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Mathematics, 21.06.2019 20:00
Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'
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Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 2
The owner of a local health food store recently started a new ad campaign to attract more business a...
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