Answer: (97.63, 99.77)
Step-by-step explanation:
Given the data:
99.6 99.7 97.9 98.6 97.7
Using calculator, we can obtain the mean and standard deviation of the sample data:
Mean(m) = 98.7
Standard deviation = 0.93
Sample size (n) = 5
Using the relation to find confidence interval :
Mean ± Zcrit * (s/√n)
Zcrit at 99% = 2.576
98.7 ± 2.576 * (0.93 / √5)
Lower limit : 98.7 - (2.576 * 0.4159086) = 97.6286194464 = 97.63 ( 1 decimal place)
Upper limit : 98.7 + (2.576 * 0.4159086) = 99.7713805536 = 99.77 ( 1 decimal place)
(97.6, 99.8)
It was -3C at 5 am because 7am-4am=3 and -4c=-3c=-1c so take of -1c to make it -3c.
Option C is correct or y=3/4x-5. Use the given functions to set up and simplify y=mx+b
to find the equation.
Since 5 out of 43 people take chinese, it's 5/43 which is the same as 0.116 which means 11,6%
I hope this was helpful! Tell me if it's unclear!
