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:
x = 49
Step-by-step explanation:
(3x + 1) = 148
148 - 1 = 147
147/3 = 49
x = 49
Answer:
it is 6,200 i got a 100 on the test
Step-by-step explanation: