Mathematics
Mathematics, 26.03.2021 17:00, uticabadgirl

HEY GUYSS PLEASE HELP I REALLY NEED THIS HEPP AND I NEED TO SHOW WORK I will mark brainliest


HEY GUYSS PLEASE HELP I REALLY NEED THIS HEPP AND I NEED TO SHOW WORK I will mark brainliest

answer
Answers: 2

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Mathematics, 21.06.2019 17:20, ryleepretty
Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?
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Mathematics, 21.06.2019 20:20, bbyjoker
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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Mathematics, 21.06.2019 23:40, breannaasmith1122
Me d is also an option but i couldn't get it in the picture
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HEY GUYSS PLEASE HELP I REALLY NEED THIS HEPP AND I NEED TO SHOW WORK I will mark brainliest
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