The fitness of 514 adults (aged 25 to 35) were sampled and their heart rates measured immediately after exercise.This sample of adults was found to have a sample mean of 1427 beats (per 10 minutes). Assume the populationstandard deviation o = 325 beats (per 10 minutes).1 Construct a two-tailed 95% confidence interval for the true mean heart beat (per 10 minutes) of all such adults.2. Determine the sample size that would be necessary to obtain an interval with width (at most) 50 for aconfidence level of 95%.

Given that Sample size n =514 Sample mean=1427 Population standard deviation =325

Answered: fitness of 514 adults (aged 25 to 35)…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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