need help with 4.7. 4.3 is 0.2119 or 21.19% 4.4 is 21.19% 4.55 is 57.62% 4.6 is

Question

need help with 4.7.
4.3 is 0.2119 or 21.19% 4.4 is 21.19% 4.55 is 57.62% 4.6 is 0.1867 or 18.67% For questions 4.3 to 4.9 use the following information. The blood glucose of a population of lesser dodos had blood glucose levels with AE65 and o 25 with the units being mg per 100 ml mg/dL). 4.3) what proportion of the population has a blood glucose level greater than or equal to 85 mg/dL? 4.4) What proportion of the population has a blood glucose level less than 45 mg/dL? 4.5) what proportion of the population has a blood glucose level above 45 but less than 85 mg /dL? 4.6) If a random sample is made of 20 animals, what is the probability that the sample mean obtained will be above 70 mg /dL? 4.7) A glucose concentration equal to or exceeding (what value) would be expected to be exhibited by 5% of the population?

Explanation / Answer

4.7 P(X>z)=0.05,

here mean=65 and sd=25

z=1.645=x-65/25

X=1.645*25+65

So x=106.125

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