Answer: Sample size would be 296.
Step-by-step explanation:
Since we have given that
Standard deviation = 4.8 hours
Margin of error = 0.65 hours
At 98% level of confidence, z = 2.33
So, It becomes,
Hence, sample size would be 296.
Answer:
153
Step-by-step explanation: 20 x 2 + 5 x 2 + 3 x 1+ 100
Answer: 4 games
Step-by-step explanation:
The team has won 6 games and lost 4 games. The win--loss ratio at the moment must be:
= 6 : 4
This must be at its simplest form which is:
= 3 : 2
To take it to 5 : 2, we would have to take up the left side of the ratio by 2.
Because we simplified by using a factor of 2, we have to multiply the 2 we just calculated by the factor to find the number of games needed to be won:
= 2 * 2
= 4 games
