In: Statistics and Probability
Publishing scientific papers online is fast, and the papers can
be long. Publishing in a paper journal...
- Publishing scientific papers online is fast, and the papers can
be long. Publishing in a paper journal means that the
paper will live forever in libraries. The British
Medical Journal combines the two: it prints short and readable
versions, with longer versions available online. Is this
ok with authors?
The journal asked a random sample of
104 of its recent authors several questions. One
question was “Should the journal continue using this system?” In
the sample, 72 said “yes.”
Do the data give good evidence that
more than two-thirds(67%) of authors support continuing this
system?
- Write the null and alternative hypotheses.
- Perform a one sample z-test for proportions. What is
the value of the test statistic?
- What is the associated P-value?
- State your conclusion using .
- What would be the potential Type 1 and Type II errors in the
problem?