We wish to test if the two varieties are significantly different in their mean carbohydrate content. Which of the following are the appropriate null and alternative hypotheses for this situation?
1) Null hypothesis: The mean carbohydrate content of the two varieties is not significantly different. Alternative hypothesis: The mean carbohydrate content of the two varieties is significantly different.
2) Null hypothesis: The mean carbohydrate content of the two varieties is significantly different. Alternative hypothesis: The mean carbohydrate content of the two varieties is not significantly different.
3) Null hypothesis: The mean carbohydrate content of the two varieties is equal. Alternative hypothesis: The mean carbohydrate content of the two varieties is not equal.
4) Null hypothesis: The mean carbohydrate content of the two varieties is not equal. Alternative hypothesis: The mean carbohydrate content of the two varieties is equal.
