Wednesday
November 26, 2014

Homework Help: statistics

Posted by Anonymous on Wednesday, May 23, 2012 at 4:29am.

.) A hospital in a large city records the weight of every infant born at the hospital. The distribution of weights is normally shaped, with a mea n = 2. 9 kilograms and a standard deviation o- = 0 .45. Determine the following:
a. The percentage of infants who weighed less than 2.1 kilograms
b. The percentile rank of a weight of 4.2 kilograms
c. The percentage of infants who weighed between 1.8 and 4.0 kilograms
d. The percentage of infants who weighed between 3.4 and 4.1 kilograms
e. The weight that divides the distribution such that 1% of the weights are above it
f. Beyond what weights do the most extreme 5% of the scores lie?
g. If 15,000 infants have been born at the hospital, how many weighed less than 3 .5 kilograms?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics - The weight of 14 healthy newborn children was measured. The sample...
math, pre- statistics - Hospital records indicated that maternity patients ...
Statistics - Upon examining its records, a hospital computes the distribution of...
Statistics - On the last three Friday evening, City hospital diagnosed a number ...
Statistics - In the following question, identify which choices would be ...
Statistics - According to a study by the Centers for Disease Control, the ...
Statistics - According to a study by the Centers for Disease Control, the ...
Statistics - According to a study by the Centers for Disease Control, the ...
math - The probability of a female birth is about 0.5. over the period of a year...
Statistics - In the following two questions, identify which choices would be ...

Search
Members