Researchers studied the heights (cm\text{cm}) of sunflowers grown under four different light conditions: natural light, artificial light, mixed light, and no light. They wish to perform pairwise comparisons of the mean heights between all the light conditions using the Bonferroni correction at a 0.050.05 significance level. The partial results show the test statistic for the comparison between the natural light and mixed light groups is t=2.85t=2.85, with a pp-value of 0.0070.007. There are four groups in total. What is the Bonferroni-adjusted significance level for this comparison, and what do the results indicate?

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Problem 1Multiple Choice

Researchers studied the heights ( $cm$ ) of sunflowers grown under four different light conditions: natural light, artificial light, mixed light, and no light. They wish to perform pairwise comparisons of the mean heights between all the light conditions using the Bonferroni correction at a $0.05$ significance level. The partial results show the test statistic for the comparison between the natural light and mixed light groups is $t equals 2.85$ , with a $p$ -value of $0.007$ . There are four groups in total. What is the Bonferroni-adjusted significance level for this comparison, and what do the results indicate?

$0.00833$

There is a significant difference between the natural light and mixed light groups

$0.00833$

There is no significant difference between the natural light and mixed light groups

$0.007$

There is significant difference between the natural light and mixed light groups

$0.007$

There is no significant difference between the natural light and mixed light groups

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