Question to test your Two Proportions knowledge

Question

Researchers surveyed a simple random sample of 120120 college students in Brazil. Sixty students were given a single 100100-real note, while the other sixty received the same amount in smaller denominations (five 2020-real notes). Among the single-note group, 4848 students spent some or all of the money. In the small-denomination group, 5555 students spent some or all of the money. Using a hypothesis test at the 0.010.01 significance level, test the claim that fewer students spend the money when given a single large note.

Accepted Answer

There is insufficient evidence to support the claim that a smaller proportion of students spend the money when given a single large (100100-real) note compared to when given five 2020-real notes.

Answer

There is sufficient evidence to support the claim that a smaller proportion of students spend the money when given a single large (100100-real) note compared to when given five 2020-real notes.

Answer

There is sufficient evidence to warrant rejection of the claim that there is an equal proportion of students spending the money when given a single large (100100-real) and when given five 2020-real notes.

Answer

There is insufficient evidence to warrant rejection of the claim that there is an equal proportion of students spending the money when given a single large (100100-real) and when given five 2020-real notes.

Two Proportions: Videos & Practice Problems