Can you help me it’s for a test 30 points
2 answers:
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Answer:
Option C) 0.57
Step-by-step explanation:
We are given the following in the question:
Average, = 260 calories
Standard deviation, = 35 calories
= 240 calories.
We have to find the Cohen's d effective size.
Formula:
Thus, the Cohen's d effective size is 0.57
Thus, the answer is
Option C) 0.57
Answer:
A normal distribution or z-test is used to construct a confidence interval.
Step-by-step explanation:
We are given the following in the question:
Sample mean, = $3120
Sample size, n = 40
Population standard deviation, σ = $677
The distribution of earnings of college is a normal distribution.
Conditions:
- Since we are given the population standard deviation and the the sample size is also greater than 30.
Conclusion:
Thus, we use a normal distribution or z-test to construct a confidence interval.
Answer:
15,17,19
Step-by-step explanation:
Make an equation :
Solve the equation:
Since x=15 then the second number is 17 and then 19
Hope this helps!
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