Soal SMA · Analisis · Kesulitan 4/5
A company's advertisement says: 'Nine out of ten dentists recommend our toothpaste.' Which critical question should a consumer ask first?
- A.How many dentists were surveyed and how was the sample selected?
- B.What is the price of the toothpaste?
- C.Does the toothpaste taste good?
- D.Is the toothpaste available in all stores?
Kunci jawaban & pembahasan
Jawaban: How many dentists were surveyed and how was the sample selected?
To evaluate the claim, one must assess the sample size and selection method to detect bias.
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