Your answer is: 63 is 90% of 70.
The work (if needed) is shown above :)
The work (if needed) is shown above :)
Write all prime numbers from 20 to 50.
2 answers:
You might be interested in
Answer:
Sample size should be atleast 617
Step-by-step explanation:
given that a 95% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit.
i.e. margin of error <0.3
Std devition sample = 3.8
For 95% assuming sample size large we can use z critical value
Z critical = 1.96
we have
Sample size should be atleast 617 to get an accurate margin of error 0.3