Math Problem Statement

A certain type of candy is reported to be distributed with the color percentages shown in the table. The number of each color in a random bag of candy is also shown. Use the chi-square goodness-of-fit test to decide whether the color distribution differs from the reported distribution. Use α = 0.05.

Solution

PIL import Image

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img_path = '/mnt/data/1732671777203p3j8dl4x.jpg' img = Image.open(img_path) img.show()It appears you've uploaded an image. I'll process it to extractesseract

Use pytesseract to extract text from the image

text = pytThe image contains a question about performing a goodness-of-fit test based on a candy distribution. Here are the key details extracted:

  • The problem involves a reported color distribution for a candy, with the following color percentages:

    • Green: 17%
    • Orange: 19%
    • Yellow: 15%
    • Blue: 23%
  • The observed frequencies (number of candies for each color) are given as:

    • Green: 18
    • Orange: 28
    • Yellow: 9
    • Blue: 17

The question is asking you to determine the null and alternative hypotheses and to compute the test statistic (χ²) for the goodness-of-fit test.

Null and Alternative Hypotheses:

  • Null Hypothesis (H₀): The color distribution is the same as that reported.
  • Alternative Hypothesis (H₁): The color distribution is different from that reported.

Next Steps:

  1. Expected frequencies: The expected frequency for each color is calculated by multiplying the total number of candies by the reported percentage.
  2. Chi-Square test statistic (χ²): We calculate the test statistic using the formula:

χ2=(OiEi)2Eiχ² = \sum \frac{(O_i - E_i)^2}{E_i}

Where:

  • OiO_i is the observed frequency.
  • EiE_i is the expected frequency.

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Math Problem Analysis

Mathematical Concepts

Chi-Square Goodness-of-Fit Test
Hypothesis Testing
Probability

Formulas

χ² = Σ((O_i - E_i)² / E_i)

Theorems

Chi-Square Distribution

Suitable Grade Level

College/Advanced High School