Mathematics, 05.05.2020 23:14 yejinschoi6362
A researcher compared the number of cavities of children who had used either Toothpaste brand X or Toothpaste brand Y for a year. At the end of the year, the researcher found that the children who had used brand X has significantly fewer cavities than the children who had used brand Y. The difference was significant at the .05 level. What is the null hypothesis
Answers: 3
Mathematics, 21.06.2019 21:30, peytonamandac9114
Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true
Answers: 2
A researcher compared the number of cavities of children who had used either Toothpaste brand X or T...
Mathematics, 29.05.2021 22:40
Mathematics, 29.05.2021 22:50