The number of years of education of self-employed individuals in the United States has a mean of 13.6 years and standard deviation of 3 years. a. If we survey a random sample of 49 self-employed people to determine the average number of years of education for the sample, what is the probability that the average years of education of our sample between 10 and 14years? b. If we randomly select a self-employed individual, what is the probability that the individual’s years of experience is between 10 and 14years? Ninety percent of the average self-employed individual’s years of experience in a sample of size 49 is greater than how many years?The university has a student population of 15,000, with 15% of them retaking the introductory statistics (STAT) course. During the summer session, an instructor teaching the introductory STAT course is interested to know a. What is the probability that at least 19 out of the 105 students in her class were repeating the course? b. What is the probability that at most 19 out of the 105 students in her class were repeating the course.
The number of years of education of self-employed individuals in the United States has a
a. If we survey a random sample of 49 self-employed people to determine the average number of years of education for the sample, what is the
b. If we randomly select a self-employed individual, what is the probability that the individual’s years of experience is between 10 and 14years?
Ninety percent of the average self-employed individual’s years of experience in a
a. What is the probability that at least 19 out of the 105 students in her class were repeating the course?
b. What is the probability that at most 19 out of the 105 students in her class were repeating the course.
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