Answer:
Step-by-step explanation:
Given that
Sample size = n = 8: sample mean = 36.5 and s = sample std dev = 7.4 minutes
98% CI using t = (28.7, 44.3) with margin of error as 7.8
Now if sigma = population std dev is known we use Z critical value
Margin of error = 2.33*8.7/\sqrt 8 = 7.167
CI = (36.5 ±7.167)
This is not wider than that used using t distribution
The margin of error of u is ___7.167
98% confidence interval using the standard normal distribution is (29.333__,43.667__)
d)the confidence interval found using the standard normal distrubution is narrower than the confidence interval found using the students t-distribution
A) = 2
B) = -1
C) = -1
Explanation:
Answer:
x=y/m - b/m
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
5y+3=7
Step-by-step explanation:
One method you can use to solve this problem is by setting up a proportion.
12 cups/28 oz = 18 cups/? oz
You'll want to cross multiply 28 by 18, which equals 504. Then divide 504 by 12 and you'll get the answer 42 ounces of beef broth.
