We have the data on energy usage of 50 DC ceiling fan models at their lowest settings, randomly chosen, from the most p

[answerhappygod]

We have the data on energy usage of 50 DC ceiling fan
models at their lowest settings, randomly chosen, from the most
popular 5 brands currently sold in Australia. Perform ANOVA and
Tukey’s comparison of multiple means with 0.01 experimentwise error
rate to compare different brands with respect to their mean energy
usage and answer the following questions. Use the brand names as
they appear in the data file to answer any questions about the
brand names, and use NA if there is no answer or multiple correct
answers to a question. Please use two decimal places for any
numerical answers where the options are not provided in the
question.
ANOVA uses the following hypotheses.
Ho: All brand mean energy usages are equal.
H1: At least brand mean energy usages are not
equal.
The F statistics for ANOVA is and the corresponding
p-value is . The lowest alpha value to reject the null
hypothesis is . With an alpha value of 0.01, we
(can/cannot) reject the null hypothesis.
Tukey’s comparison indicates that the means are all (equal/not
equal) and all the brands are grouped into
(1/2/3/4/5) group(s). is the brand with
lowest energy consumption and is the brand with the
highest energy consumption.