At 0.05 significant level, which of the following is true? a. Reject the null hy

Question

At 0.05 significant level, which of the following is true? a. Reject the null hypothesis and conclude that hospitals have no effect on number of surgeries performed c. Accept the null hypothesis and conclude that hospitals and the days have no effect on the number of surgeries performed d. (a) and (b) above e. None of the above The following table shows "ANALYSIS OF VARIANCE" table from a study involving the influence of operating temperature (TEMP) and the type of faceplate glass (GLASS) on the light output of an oscilloscope tube. Fill in the blanks in the ANOVA table and answer questions (A) to (E) below: How many levels of faceplate glass factor (GLASS) were studied? a. 1 b. 2 c. 3 d. 4 e. none of the above How many replicates of the experiment were performed? a. 2 b. 4 c. 6 d. 7 e. 24 Which of the following factors has significant effect on the light output of the oscilloscope? a. factor TEMP is significant b. factor GLASS is significant c. interaction TEMP* GLASS is significant d. (b) and (c)above e. all of the above

Explanation / Answer

from above:

A) =df+! =2+1=3

hence option C

B)total number of replicates =N+1 =23+! =24

C) all of the above as F stat is above from all of F stat values

Source SS df MS F F critical temp 1719844 3 573281.3 1948.8317 3.490295 glass 389601 2 194801 662.2130 3.885294 glass*temp 387264 6 64544 219.4130 2.99612 error 3530 12 294.1667 total 2500239 23

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