Answer: c
Step-by-step explanation:
Step-by-step explanation:
98 = 188t - 16t^2
-16t^2 + 188t = 98
-16t^2 + 188t - 98 = 0
8t^2 - 94t + 49 = 0
Use the quadratic formula with a = 8 , b = -94 , c = 49 to get the solutions
t = [(47 - root 1817) / 8]≈ 0.55
and
t = [(47 + root 1817) / 8] ≈ 11.20
Answer:
The 95% confidence interval is
Step-by-step explanation:
From the question we are told that
The sample mean for fat-blocking
The sample size for fat-blocking
The standard deviation for fat-blocking is
The sample mean for control group is
The sample size for control group is
The standard deviation for control group is
Given that the confidence level is 95% then the level of significance can me mathematically evaluated as
Generally the degree of freedom is mathematically represented as
substituting values
Next we obtain the critical value of at a degree of freedom of 22 form the students t-distribution , the value is
Generally the margin of error is mathematically represented as
substituting values
the 95% confidence interval for the differences of the means is mathematically represented as
substituting values
Answer:
the picture is messed up
Step-by-step explanation:
4:1 should be your answer I might be dumb♀️