The Central Limit Theorem for Sample Means (Averages) · Exercise 7
Previously, De Anza's statistics students estimated that the amount of change daytime statistics students carry is exponentially distributed with a mean of $0.88. Suppose that we randomly pick 25 daytime statistics students.
(a) In words, Χ = ____________.
(b) Χ ~ _____(_____, _____)
(c) In words, = ____________.
(d) ~ ______ (______, ______)
(e) Find the probability that an individual had between $0.80 and $1.00. Graph the situation, and shade in the area to be determined.
(f) Find the probability that the average amount of change of the 25 students was between $0.80 and $1.00. Graph the situation, and shade in the area to be determined.
(g) Explain why there is a difference in part (e) and part (f).
OpenStax, Statistics · §7.1 The Central Limit Theorem for Sample Means (Averages) · Exercise 7
No hints for this one.
Check your full solution
Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.
Your first check today doesn't need an account.
Your photos and PDFs are read once and not stored — only the transcription is kept.