Mathematics, 24.04.2020 22:35, kyleee1991
Loretta, who turns 91 this year, has heard that the mean systolic blood pressure among the elderly is 120 millimeters of mercury (mmHg), but she believes that the actual value is higher. She bases her belief on a recently reported study of 17 randomly selected, elderly adults. The sample mean systolic blood pressure of the adults in the study was 130 mmHg, and the sample standard deviation was 23 mmHg. Assume that the population of systolic blood pressures of elderly adults is normally distributed. Based on the study, at the 0.1 level of significance, can it be concluded that µ, the mean systolic blood pressure among elderly adults, is greater than 120 mmHg? Carry your intermediate computations to at least three decimal places. Make sure to fol
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Mathematics, 22.06.2019 00:30, kelseeygee
What is the value of the discrimination for the quadratic equation 0=×2+2+×2
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Which situation could best be represented by this linear equation? 24x + 38y = 520 > if x represents the number of bracelets and y represents the number of rings, there were 24 more bracelets sold than rings. the total sales were $520. if x represents the number of bracelets and y represents the number of rings, there were 38 more bracelets sold than rings. the total sales were $520. if x represents the number of bracelets sold at $24 each and y represents the number of rings sold at $38 each, the total sales were $520 if x represents the number of bracelets and y represents the number of rings, there were 520 bracelets and rings sold. bracelets were $24, and rings were $38. e
Answers: 1
Loretta, who turns 91 this year, has heard that the mean systolic blood pressure among the elderly i...
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