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Whole grain versus regular grain? A study of young
Chapter , Problem 8.18(choose chapter or problem)
Whole grain versus regular grain? A study of young children was designed to increase their intake of whole-grain, rather than regular-grain, snacks. At the end of the study the 76 children who participated in the study were presented with a choice between a regular-grain snack and a whole-grain alternative. The whole-grain alternative was chosen by 52 children. You want to examine the possibility that the children are equally likely to choose each type of snack. (a) Formulate the null and alternative hypotheses for this setting. (b) Are the guidelines for using the large-sample significance test satisfied for testing this null hypothesis? Explain your answer. (c) Perform the significance test and summarize your results in a short paragraph.
Questions & Answers
QUESTION:
Whole grain versus regular grain? A study of young children was designed to increase their intake of whole-grain, rather than regular-grain, snacks. At the end of the study the 76 children who participated in the study were presented with a choice between a regular-grain snack and a whole-grain alternative. The whole-grain alternative was chosen by 52 children. You want to examine the possibility that the children are equally likely to choose each type of snack. (a) Formulate the null and alternative hypotheses for this setting. (b) Are the guidelines for using the large-sample significance test satisfied for testing this null hypothesis? Explain your answer. (c) Perform the significance test and summarize your results in a short paragraph.
ANSWER:(a) Null hypothesis: The children are equally likely to choose either a regular-grain snack or a whole-grain alternative. (b) Yes, the guidelines for using the large-sample significance test are satisfied for