Answer:
10
Step-by-step explanation:
X = 10.7
Using the z-distribution, it is found that the 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).
We are given the <em>standard deviation</em> for the population, which is why the <em>z-distribution </em>is used to solve this question.
The information given is:
- Sample mean of .
- Population standard deviation of .
- Sample size of .
The confidence interval is:
The critical value, using a z-distribution calculator, for a <u>95% confidence interval</u> is z = 1.645, hence:
The 90% confidence interval for mean calories in a 30-gram serving of all chocolate chip cookies is (143, 149).
A similar problem is given at brainly.com/question/16807970
Answer:
Step-by-step explanation:
● valume of a rectangular formulas = l × w × h
where,
- l = lenth
- w = wide
- h = height
● given values,
- l = 5.1
- w = 5.1
- h = 5.1
solusions,
- v = l × w × h
- v = 5.1×5.1×5.1
- v = 132.651.
Hope it's helps you
Answer: Area:
Step-by-step explanation:
Step 1: Convert the Expressions
Step 2: Reduce the Numbers
Step 3: Multiply
Step 4: Simplify
Please mark brainliest if this helped! :)