Econ. 5 Chapter 15 Practice Assignment On Saturday nights, the population share of viewers watching various broadcast TV
Posted: Wed May 11, 2022 5:34 am
Econ. 5 Chapter 15 Practice Assignment
On Saturday nights, the population share of viewers watching
various broadcast TV networks are known to be: ABC 29% CBS 28%
NBC 25% Other 18%
A sample of 300 viewers on Sunday night showed the following
numbers watching each network: ABC 95 CBS 70 NBC 89 Other
46
Are the viewing proportions different on Saturday and Sunday
nights?
State the null and alternative hypotheses.
Calculate the expected frequencies for Sunday night based on the
null hypothesis.
Calculate the χ2 test statistic.
Calculate the degrees of freedom.
Find a range for the p-value using the χ2 table.
What is your conclusion in statistical terms? Use α =
.05.
Explain your conclusion in business terms.
On Saturday nights, the population share of viewers watching
various broadcast TV networks are known to be: ABC 29% CBS 28%
NBC 25% Other 18%
A sample of 300 viewers on Sunday night showed the following
numbers watching each network: ABC 95 CBS 70 NBC 89 Other
46
Are the viewing proportions different on Saturday and Sunday
nights?
State the null and alternative hypotheses.
Calculate the expected frequencies for Sunday night based on the
null hypothesis.
Calculate the χ2 test statistic.
Calculate the degrees of freedom.
Find a range for the p-value using the χ2 table.
What is your conclusion in statistical terms? Use α =
.05.
Explain your conclusion in business terms.