Question

The lengths of the eggs of a species of bird are roughly normally distributed, with a mean of 32 mm and an SD of 1.2 mm.Approximately 50% of the eggs have lengths in the range 32 mm plus or minus ____________ mm.?

Answer 1

help

Answer 2

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Answer 3

Statisticians often have to make decisions based on incomplete information. Here is one such situation. A computer program is designed to convert lists of numbers into standard units. The program is used on a list of 100 numbers. A statistician sees the first 10 of the 100 results that the program produces. They are:

-6.8, 2.3, 4.9, -11, -1.15, 4.9, -5.1, 0.7, 8.1, -4.8

Based on this information, what is the statistician’s best assessment about whether the program is working?


a) Something is definitely wrong with the program.
b) The program looks good.
c) It looks as though something might be wrong with the program, but it’s not possible to be certain based on just 10 out of the 100 results.

Answer 4

help me with ths too