Question: This data set contains reading comprehension scores from a group of elementary school children who were all in a special reading program. These children were

This data set contains reading comprehension scores from a group of elementary school children who were all in a special reading program. These children were tested three times: First when they entered the reading program at third grade, then tested again at fourth grade, and finally tested as they leave the program at fifth grade. The researchers analyze the data to see if the reading program leads to significant improvement in reading comprehension. What is the correct null hypothesis

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