1. A sample of chocolate from the local candy shop contained 17 milk chocolate pieces out of a sample of 50 . An entire batch of chocolate contains 350 pieces. Which option below is a valid claim about the population? The number of milk chocolate pieces is between 115 and 120 pieces. An estimated 200 to 300 pieces are milk chocolate. At least 200 pieces are milk chocolate. No more than 110 pieces are milk chocolate.
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To better understand the claim about the population, the sample can provide a good estimate of the total number of milk chocolate pieces. Given that 34% of the sample (17 out of 50) is milk chocolate, you can multiply that ratio with the total batch, suggesting about 119 milk chocolate pieces (0.34 * 350). This solidifies that options about "between 115 and 120" and "at least 200" are not valid claims because the calculation suggests a lower number. When tackling these kinds of problems, it’s key to understand sampling proportions. A common mistake is overestimating the population based on a small sample size without proper calculations. Always reference back to your sample ratio and apply it accurately to avoid overstating the quantities!