Answer:
(96.91, 101.09)
Step-by-step explanation:
To calculate the interval, you require the Z value at 95% confidence interval. The Z value is 1.96. The formula to calculate the confidence interval:
Where X is the mean and s is the standard deviation and x the sample size:
The interval is (96.91, 101.09)
Answer: p=5+3/2 or p=5-3/2
Step-by-step explanation:
Solution: We are given:
Let be the weight (oz) of laptop
We have to find
To find the this probability, we need to find the z score value.
The z score is given below:
Now, we have to find
Using the standard normal table, we have:
0.9236 or 92.36% of laptops are overweight
65 * 1.35 = 87.75
87.75 does not equal 92
so this is False