Asked by Melissa Ferreras on May 07, 2024

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How many unpopped kernels are left when you pop a bag of microwave popcorn? Quality control personnel at Yummy Popcorn take a random sample of 80 bags of popcorn.They pop each bag in a microwave and then count the number of unpopped kernels.The following interval is produced: t-interval for μ : with 99% Confidence,
11 < μ(unpopped) < 25

A) The average number of unpopped kernels in a bag of Yummy popcorn is between 11 and 25 kernels.
B) We are 99% sure that the average number of unpopped kernels in bags of Yummy brand popcorn is between 11 and 25 kernels.
C) We are 99% confident that the average number of unpopped kernels in microwave popcorn bags is between 11 and 25.
D) 99% of all samples of Yummy popcorn will produce this confidence interval.
E) About 99% of the sampled bags had between 11 and 25 unpopped kernels.

Unpopped Kernels

Corn kernels that fail to explode and transform into popcorn when heated, often due to insufficient moisture content or uneven heating.

Confidence Interval

Values range established from sample statistics, presumed to hold the value of an unseen population's parameter.

Microwave Popcorn

Pre-packaged popcorn that is designed to be quickly and conveniently cooked in a microwave oven.

  • Acquire knowledge on the idea of a confidence interval and its role in deducing parameters of a population.
  • Decode the application of confidence intervals in the setting of the specific variable being analyzed (like cholesterol rates, gasoline prices, decrement in weight).
  • Identify the accurate understanding of confidence intervals amidst prevalent misunderstandings.
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KK
Karissa KinkelaarMay 11, 2024
Final Answer :
B
Explanation :
This statement correctly represents the interpretation of the given confidence interval. It implies that if we take many random samples of 80 bags of Yummy Popcorn and compute the confidence intervals, about 99% of them will contain the true population mean of unpopped kernels. Therefore, we can be 99% sure that the true population mean lies between 11 and 25 unpopped kernels in a bag of Yummy brand popcorn. Option A is too narrow and does not account for the uncertainty in the sample estimate. Option C is too broad as it states the average number of unpopped kernels in microwave popcorn bags, whereas the data is only collected from Yummy Popcorn. Option D is incorrect as it pertains to all samples, not just Yummy Popcorn, and is also too strong to make such a claim. Option E is incorrect as it refers to the sampled bags, whereas we are interested in the true population mean.