Step-by-step explanation: This simple confidence interval calculator uses a Z statistic and sample mean (M) to generate an interval estimate of a population mean (μ).
Note: You should only use this calculator if (a) your sample size is 30 or greater; and/or (b) you know the population standard deviation (σ), and use this instead of your sample's standard deviation (an unusual situation). If your data does not meet these requirements, consider using the t statistic to generate a confidence interval.
where:
M = sample mean
Z = Z statistic determined by confidence level
sM = standard error = √(s2/n)
As you can see, to perform this calculation you need to know your sample mean, the number of items in your sample, and your sample's standard deviation (or population's standard deviation if your sample size is smaller than 30). (If you need to calculate mean and standard deviation from a set of raw scores, you can do so using our descriptive statistics tools.)
Volume of piece candy is 113.04 cubic centimeter
<em><u>Solution:</u></em>
A student bought a piece of hard candy that is in the shape of a sphere
<em><u>The candy has a radius of 3 centimeters</u></em>
Radius = 3 cm
Use 3.14 for π
<em><u>Volume of sphere is given as:</u></em>
Where, "r" is the radius of sphere
<em><u>Therefore, volume of candy is given as:</u></em>
Thus volume of candy is 113.04 cubic centimeter
Answer:
9 females
Step-by-step explanation:
Original ratio is 5:3 meaning to get 15 males you need to multiply by 3
which gives you 15 males.
Now do the same for females and multiply by 3 giving you your answer
9!
