Question
2. In a lab experiment, students estim
is known to have a true value of 5% weight by volume, but students' results are known to follow
approximately a normal distribution with a standard deviation of 0.09 percentage points.
ate the concentration of an unknown salt in solution. The solution
A) Assuming that the student measurements are unbiased and independent, what proportion of
students will obtain a concentration estimate greater than 506%?
2-х-М
-0.05004 np
ICo.oso)
16S
Assuming that the student measurements are unbiased and independent, what proportion of
of 20 students will obtain a sample mean concentration estimate greater than 5.06%?
classes
20-4
o.o
20 20
C ts Circle the name of a plot that could be used to display the distribution of the concentrations
obtained by the class of 20 students (circle only one answer, though more may be correct):
time plot
pie chart stem plot histogram
ar plot
expand button
Transcribed Image Text:2. In a lab experiment, students estim is known to have a true value of 5% weight by volume, but students' results are known to follow approximately a normal distribution with a standard deviation of 0.09 percentage points. ate the concentration of an unknown salt in solution. The solution A) Assuming that the student measurements are unbiased and independent, what proportion of students will obtain a concentration estimate greater than 506%? 2-х-М -0.05004 np ICo.oso) 16S Assuming that the student measurements are unbiased and independent, what proportion of of 20 students will obtain a sample mean concentration estimate greater than 5.06%? classes 20-4 o.o 20 20 C ts Circle the name of a plot that could be used to display the distribution of the concentrations obtained by the class of 20 students (circle only one answer, though more may be correct): time plot pie chart stem plot histogram ar plot
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