Mathematics, 16.06.2020 22:57 Jermlew
1)A sample of 17 patients in a hospital had these hemoglobin readings (grams):
112 120 98 55 71 35 99 124 64
150 150 55 100 132 20 70 93
Find a 95% confidence interval for the hemoglobin reading for all the patients in the hospital.
2)A sample of 500 nursing applications included 60 from men. Find the 90% confidence interval for the true proportion of men who applied to the nursing program.
3)Average undergraduate cost for tuition, fees, room, and board for all institutions last year was $19,410. A random sample of costs this year for 40 institutions of higher learning indicated that the sample mean was $22,098, and the sample standard deviation was $6050. At the α=0.01, is there sufficient evidence to conclude that the cost of attendance has increased?
Answers: 3
Mathematics, 22.06.2019 01:00
Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units
Answers: 3
Mathematics, 22.06.2019 03:20
Atotal of 505 tickets were sold for a school play they were either adult tickets or student tickets they were 55 more student tickets so than adult tickets how many adult tickets were sold ?
Answers: 2
1)A sample of 17 patients in a hospital had these hemoglobin readings (grams):
112 120 98 55 71 35...
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