Use your observations of the circuit construction simulation experiment and your course notes to answer the following questions.
2 answers:
Answer:
When two resistors are connected in series, there is less total current in the circuit than if the two resistors were connected in parallel.
Explanation:
When two or more resistors are connected in series then total resistance is given as
while if two or more resistors are connected in parallel then total resistance is given as
so here we can say that net resistance would be less in the circuit if resistors are connected in parallel
so here we can say that
When two resistors are connected in series, there is less total current in the circuit than if the two resistors were connected in parallel.
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Answer:
a. μ 3 ± 1.8 = [1.2,4.8]
b. The correct answer is option D. No, because the sample size is large enough.
Explanation:
a. The population mean can be determined using a confidence interval which is made up of a point estimate from a given sample and the calculation error margin. Thus:
μ±(t*s)/sqrt(n)
where:
μ = is the 95% confidence interval estimate
x_ = mean of the sample = 3
s = standard deviation of the sample = 5.8
n = size of the sample = 41
t = the t statistic for 95% confidence and 40 (n-1) degrees of freedom = 2.021
substituting all the variable, we have:
μ 3 ± (2.021*5.8)/sqrt(41) = 3 ± 1.8 = [1.2,4.8]
b. The correct answer is option D. No, because the sample size is large enough.
Using the the Central Limit Theorem which states that regardless of the distribution shape of the underlying population, a sampling distribution of size which is ≥ 30 is normally distributed.