## [answered] Calculate X bar and S. High Temp. - Mean 86.45 Standard Dev

Calculate X bar and S.

High Temp. - Mean 86.45 Standard Deviation 3.67

Sample Standard Deviation, s 3.679650867742

Variance (Sample Standard), s2 13.539830508475

Population Standard Deviation, ? 3.6488582689201

Variance (Population Standard), ?2 13.314166666667

Total Numbers, N 60

Sum: 5187

Mean (Average): 86.45

Low Temp. - Mean 72.87 Standard Deviation 4.30

Sample Standard Deviation, s 4.3000459858269

Variance (Sample Standard), s2 18.490395480226

Population Standard Deviation, ? 4.264061704786

Variance (Population Standard), ?2 18.182222222222

Total Numbers, N 60

Sum: 4372

Mean (Average): 72.866666666667

I need to answer the questions below with the information from above.

1. What percentage of the high temperatures are within the interval X bar - S to X bar + S?

2. What percentage of the high temperatures are within the interval X bar- 2S to X bar + 2S?

3. How do these percentages compare to the corresponding percentages for a normal distribution (68.26% and 95.44%, respectively)?

4. Repeat Parts 2 to 6 for the minimum temperatures on your spreadsheet.

5. Would you conclude that the two distributions are normally distributed? Why or why not?

Solution details:
STATUS
QUALITY
Approved

This question was answered on: Sep 18, 2020

Solution~0001005996.zip (25.37 KB)

This attachment is locked

We have a ready expert answer for this paper which you can use for in-depth understanding, research editing or paraphrasing. You can buy it or order for a fresh, original and plagiarism-free copy from our tutoring website www.aceyourhomework.com (Deadline assured. Flexible pricing. TurnItIn Report provided)

STATUS

QUALITY

Approved

Sep 18, 2020

EXPERT

Tutor