Answer:
- Sample Proportion of 1500 young adult Internet users = 0.90
- Sample Mean of 1500 young adult Internet users = 1350
- Standard deviation of the sample proportion = 0.0077 to 4 d.p.
Step-by-step explanation:
The Central limit theorem explains that for a random sample obtained from an independent distribution, the sampling distribution is approximately normal, with a sample proportion that is approximately equal to the population proportion and the standard deviation of sample proportion is given as
σₓ = √[p(1-p)/n]
So, sample proportion = population proportion
p = p₀ = 90% = 0.90
Sample mean = np
where n = sample size = 1500
p = sample proportion = 0.90
Sample Mean of 1500 young adult Internet users = 1500 × 0.90 = 1350
Standard deviation of sample proportion
= σₓ = √[p(1-p)/n]
= √(0.90×0.10/1500) = 0.0077459667
= 0.0077 to 4 d.p.
Hope this Helps!!!
