Answer:
Step-by-step explanation:
We want to determine a 95% confidence interval for the mean total cholesterol level of all males.
Number of sample, n = 355
Mean, u = 185 mg
Standard deviation, s = 16
For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.
We will apply the formula
Confidence interval
= mean +/- z ×standard deviation/√n
It becomes
185 +/- 1.96 × 16/√355
= 185 +/- 1.96 × 0.849
= 185 +/- 1.66404
The lower end of the confidence interval is 185 - 1.66404 =183.336
The upper end of the confidence interval is 185 + 1.66404 = 186.66
Therefore, with 95% confidence interval, the mean total cholesterol level of all males is between 183.336 mg and 186.66 mg
Answer: 44
Step-by-step explanation:
<R is an inscribed Angle- so if we follow it's ends to the intercepted Arc we are looking at arc NQ
the intercepted arc is 2 times the measure of the inscribed angle, so arc NQ is 44 (22*2)
<O has the same measure as the arc NQ so angle O is 44
Answer:
Blank 1: x
Blank 2: 2x
Blank 3: 2x-16
Blank 4: 12
Blank 5: 16
Blank 6: 2
Blank 7: 14
Blanks 8-10: at least 14
Blank 11: negative
Blank 12: flip
Blank 13: 2m
Blank 14: money
Blank 15: spent
Step-by-step explanation:
I believe these are the correct answers. I'm not so sure about Blank 12, 14 and 15, but otherwise I think these are correct. If you have any questions on any of them I'm happy to explain why. I hope this helps :D
1. l = 12 - 2x w = 16 - 2x h = x
<span>2. V = (12 - 2x) (16 - 2x) (x) </span>
<span>3. Maximum Volume = 194 in.^3 when x = 2.26</span>
