Formulating null and alternative hypotheses and identifying Type I and II errors

Question

Formulating null and alternative hypotheses and identifying Type I and II errors A federal economist conducts a statistical study to test his hunch that the proportion of in-store purchases paid for by check has decreased since 2005. Formulate the null and alternative hypotheses for the test conducted by the economist. For each statement in the following table, click the correct radio button to indicate whether the statement is the null hypothesis, the alternative hypothesis, or neither. A Type I error is committed if the economist does not conclude that the proportion of in-store purchases paid for by check has decreased, when it actually has not decreased A Type II error is committed if the economist for by check has decreased, when it actually has not decreased

Explanation / Answer

1.

Here,

Ho: p >= p0
Ha: p < p0

Hence,

a) Neither
b) Null hypothesis
c) Alternative hypothesis
d) Neither

**************************

2.

A type I error is committed if the economist [[concludes]] that the proportion of in store purchases paid by check decreased, when it actually [[has not decreased]].

A type II error is committed if the economist [[does not conclude]] that the proportion of in store purchases paid by check decreased, when it actually [[decreased]].

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---