Answer:
The psychologist finds that the estimated Cohen's d is 0.583.
Step-by-step explanation:
The Cohen's d is used to calculate the effect size, appied when a null hypothesis is rejected.
It can be calculated for this case of population mean as:

The psychologist finds that the estimated Cohen's d is 0.583.
Constants are numbers alone with no variables.
The constants are: 12, -3.7, 1/3
Answer:
4.444
Step-by-step explanation:
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Answer:
the mean is 5
Step-by-step explanation:
4 + 3 + 6 = 13
therefore the money she got from selling the curry puffs = 4/13 * 273 = $84
That = 84 / 0.65 = 129 curry puffs
As this is half of the total , she made 258 curry puffs. Answer.