STAT 2303 Quiz Pg 1 of2 Fall 2017 Stat 2303-Quiz 2 Name Quiz based on Exam 2 Mat

Question

STAT 2303 Quiz Pg 1 of2 Fall 2017 Stat 2303-Quiz 2 Name Quiz based on Exam 2 Material: [Worth 10 Points] QuízScore:-_-/10 1. [2 Points] (Class Notes) Irue or False: For each of the following statements, decide whether it is TRUE or a) If the population is Skewed right and you take a random sample of 35 observations from this FALSE. If FALSE, explain why population, then the distribution of the sample will be approximately normal. b) we are 97% confident that the sample mean falls between 3.0 and 32s". c) The ages of actresses when they won an acting award is summarized by the statistics: n·77,x' . 357 years, and s = 1 1.6 years. The hypotheses tested was Ho #357 vs. HeTx 6-357. 2. 12 Points] (HW 5 Q1) One of the tallest living men has a height of 218 cm. One of the tallest living women of 173 cm and a standard deviation of 4 cm. Heights of women have a mean of 163 cm and a standard deviation of 6cm. Relative to the population of the same gender, who is taller? Justify reasoning

Explanation / Answer

Hi, please don't post assignement questions. I have to answer questions individually.

2)

Mean Men = 173, stdev =4
Mean Women = 163, stdev = 6

Highest men height =218
Highest women height = 210

It appears that the tallest man is taller than tallest women at 218 cm vs. 210 cm. But we normalize both and check w.r.t gender.

So, normalizing:
Z of tallest men = (218-173)/4 = 11.25
Z of tallest women = (210-163)/6 = 7.833

Since Z score of tallest man is much higher than Z score of tallest woman we conclude that Tallest Man is taller even w.r.t to his gender

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.