Question

asked 2021-06-03

Passed at the advanced level: \(41-48\) items correct

Failed: \(0-35\) items correct

Percent in 2003

82%

50%

18%

Percent in 2004

93%

59%

7%

asked 2020-11-23

State and test the appropriate hypotheses using \(\displaystyle\alpha={0.05}\)

\(\begin{array}{|c|c|}\hline & 1 & 2 & Total \\ \hline 1 & 35 & 147 & 182 \\ \hline & 25.48 & 156.52 & \\ \hline 2 & 101 & 629 & 730 \\ \hline & 102.20 & 627.80 & \\ \hline 3 & 28 & 222 & 250 \\ \hline & 35.00 & 215.00 & \\ \hline 4 & 4 & 34 & 38 \\ \hline & 5.32 & 32.68 & \\ \hline Total & 168 & 1032 & 1200 \\ \hline \end{array}\)

\(Chisq= 3.557\ +\ 0.579\ +\ 0.014\ +\ 0.002\ +\ 1.400\ +\ 0.228\ +\ 0.328\ +\ 0.053=6.161\)

\(\displaystyle{d}{f}={3}\)

asked 2020-12-29

\(\begin{array}{|c|c|c|c|c|} \hline \text {Education}& \text {Use of vitamins takes} &\text{Does not take}\\ \hline \text {No High School Diploma} & 0.03 & 0.07 \\ \hline \text{High School Diploma} & 0.11 & 0.39 \\ \hline \text {Undergraduate Degree} & 0.09 & 0.27 \\ \hline \text {Graduate Degree} & 0.02 & 0.02 \\ \hline \end{array}\)

You select a person at random. What is the probability the person does not take vitamins regularly?

asked 2021-05-16

You randomly survey students in your school. You ask whether they have jobs. You display your results in the two-way table. How many male students do not have a job?

\(\begin{array}{} &&Job\\ Gender & Male&27&12 \\ & Female&42&17\\ \end{array}\)