Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of p =1.2 kg
Assume that the amounts of weight that male college students gain during their freshman year are normally distributed with a mean of p =1.2 kg and a standard deviation oto= 4.3 kg. Complete parts {a} through {c} below. E) a. It 1 male college student is randomly selected, nd the probability that he gains between [1 kg and 3 kg during freshman year. The probability is D (Round to four decimal places as needed.) b. lid male college students are randomly selected, nd the probability that their mean weight gain during freshman year is between [I kg and 3 kg. The probability is . (Round to four decimal places as needed.) c. Why can the normal distribution be used in part (b), even though the sample size does not exceed 30? C) A. Since the distribution is of individuals, not sample means, the distribution is a normal distribution for any sample size. 0 B. Since the distribution is of sample means, not individuals, the distribution is a normal distribution for any sample size. 0 C. Since the original population has a normal distribution. the distribution of sample means is a normal distribution for any sample size. 0 D. Since the weight gain exceeds 3t]. the distribution of sample means is a normal distribution for any sample size
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started