SOLUTION IS =511×80=40880
Answer: a. 69.72 ± 1.37
Step-by-step explanation:
We want to determine a 90% confidence interval for the mean height (in inches) of adult men in the United States.
Number of sample, n = 25
Mean, u = 69.72 inches
Standard deviation, s = 4.15
For a confidence level of 90%, the corresponding z value is 1.645. This is determined from the normal distribution table.
We will apply the formula
Confidence interval
= mean ± z × standard deviation/√n
It becomes
69.72 ± 1.645 × 4.15/√25
= 69.72 ± 1.645 × 0.83
= 69.72 ± 1.37
The lower end of the confidence interval is 69.72 - 1.37 = 68.35
The upper end of the confidence interval is 69.72 + 1.37 = 71.09
Answer:
Step-by-step explanation:
1. 3/4 color in 6
2. 7/8 color in 7
3. 1/4 color in 2
4. 7/8 color in 7
5. 1/8 color in 1
bottom of page:
1. 1 1/3
2. 2/3
3. 1 1/20
4. 1
5. 3/4
It is 3x+6-23
Additional information may be required
Answer:
3200
Step-by-step explanation:
