Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean u = 5.1 and standard deviation a = 0.5. The Standard Normal Distribution u - 0, o - 1) -3 -2 -1 2 68% of area 95% of area 99.7% of area (a) Convert the x interval, 4.5 < x, to a z interval. (Round your answer to two decimal places.) < z (b) Convert the x interval, x < 4.2, to a z interval. (Round your answer to two decimal places.) z< (c) Convert the x interval, 4.0 < x < 5.5, to az interval. (Round your answers to two decimal places.)

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Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean u = 5.1 and standard deviation o = 0.5.
The Standard Normal Distribution
(u = 0, o = 1)
-3
-2
-1
3
68% of area
95% of area
99.7% of area
(a) Convert the x interval, 4.5 < x, to a z interval. (Round your answer to two decimal places.)
< Z
(b) Convert the x interval, x < 4.2, to a z interval. (Round your answer to two decimal places.)
(c) Convert the x interval, 4.0 < x < 5.5, to a z interval. (Round your answers to two decimal places.)
(d) Convert the z interval, z < -1.44, to an x interval. (Round your answer tơ one decimal place.)
X <
(e) Convert the z interval, 1.28 < z, to an x interval. (Round your answer to one decimal place.)
(f) Convert the z interval, -2.25 < z < -1.00, to an x interval. (Round your answers to one decimal place.)
< X <
(g) If a female had an RBC count of 5.9 or higher, would that be considered unusually high? Explain using z values.
O Yes. A z score of 1.60 implies that this RBC is unusually high.
O No. A z score of -1.60 implies that this RBC is unusually low.
O No. A z score of 1.60 implies that this RBC is normal.
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Transcribed Image Text:Chrome File Edit View History Bookmarks People Tab Window Help 22% [幻 Fri 5:28 PM Rec MA Cer C Use Cer t Tes * Ch t We * Sar С -11 с та Alg hov G hov Cha МА All M HB CR Ray -> webassign.net/web/Student/Assignment-Responses/tutorial?dep3D26032543&tags=autosave#question4029472_6 J Upda Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean u = 5.1 and standard deviation o = 0.5. The Standard Normal Distribution (u = 0, o = 1) -3 -2 -1 3 68% of area 95% of area 99.7% of area (a) Convert the x interval, 4.5 < x, to a z interval. (Round your answer to two decimal places.) < Z (b) Convert the x interval, x < 4.2, to a z interval. (Round your answer to two decimal places.) (c) Convert the x interval, 4.0 < x < 5.5, to a z interval. (Round your answers to two decimal places.) (d) Convert the z interval, z < -1.44, to an x interval. (Round your answer tơ one decimal place.) X < (e) Convert the z interval, 1.28 < z, to an x interval. (Round your answer to one decimal place.) (f) Convert the z interval, -2.25 < z < -1.00, to an x interval. (Round your answers to one decimal place.) < X < (g) If a female had an RBC count of 5.9 or higher, would that be considered unusually high? Explain using z values. O Yes. A z score of 1.60 implies that this RBC is unusually high. O No. A z score of -1.60 implies that this RBC is unusually low. O No. A z score of 1.60 implies that this RBC is normal. Need Help? Read It Watch It dtv O l T 么8 535 2. K Aa APR PDF 2 T. P ON 2.
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