Answer:
The sample proportion is p = 0.04.
Step-by-step explanation:
The best point estimate for a 95% confidence interval for the true proportion of pills in the shipment that have failed to retain full potency is ...
Sample of 200 pills.
Eight have failed to retain their full potency.
So the sample proportion is:
Answer:
9 to 44 is the ratio of the number of phone calls that we're from Plano to the total number of phone calls that day
Step-by-step explanation:
Given:
The total number of phone calls that was answered by secretary in a day = 88
The number of calls that were from Plano Texas = 18
To Find :
The of the number of phone calls that we're from Plano to the total number of phone calls that day
Solution:
The ratio of phone calls that we're from Plano to the total number of phone calls that day =
Now lets substitute the given value,
The ratio of phone calls that we're from Plano to the total number of phone calls that day =
Now reducing the fraction
=>
So the ratio is 9:44
Answer:
If returning the card to deck after 1st draw, the answer is 7/52 * 4/52
If not returning the card to deck after 1st draw, t he answer is 7/52 * 4/51