Math 221 week 3 quiz - Study guides, Class notes & Summaries

MATH 221 Week 3 QUIZ 2

MATH 221 Week 3 QUIZ 2

1. Question: (CO 1) Among 500 people at the concert, a survey of 35 found 28% found it too loud. What is the population and what is the sample? 2. Question: (CO 1) In asking all 349 second graders in a school district, it is found that on average, these second graders have 2.5 pets. Is this number a parameter or a statistic and why? 3. Question: (CO 1) Classify the data of all the political parties in the world. 4. Question: (CO 1) The data set that lists the temperatures in Albany, NY each d...

MATH 221 WEEK 7 QUIZ Question 1 2 / 2 pts (CO6) From a random sample of 55 businesses, it is found that the mean time that employees spend on personal issues each week is 5.8 hours with a standar d deviation of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? Correct! (5.71, 5.89) (5.73, 5.87) (5.72, 5.88) (5.74, 5.90) Question 2 2 / 2 pts (CO6) If a confidence interval is given from 8.52 to 10.23 and the mean is known to be 9.375, what is the marg...

1. Question: (CO 3) Consider the following table: If you created the probability distribution for these data, what would be the probability of 50-59? 2. Question: (CO 3) Consider the following table of hours worked by part- time employees. These employees must work in 5 hourblocks. Find the mean of this variable. 3. Question: (CO 3) Consider the following table: Find the variance of this variable. 4. Question: (CO 3) Consider the following table: Find the standard deviation of this variable...

MATH 221 Week 7 Quiz Question 1 (CO 4) From a random sample of 55 businesses, it is found that the mean time that employees spend on personal issues each week is 5.8 hours with a standard deviat ion of 0.35 hours. What is the 95% confidence interval for the amount of time spent on personal issues? (5.74, 5.90) (5.71, 5.89) (5.73, 5.87) (5.72, 5.88) Question 1 (CO 4) From a random sample of 68 businesses, it is found that the mean time that employees spend on personal issues each week is 5.8 hour...

MATH 221 Week 3 Quiz (100% Correct Answers) | Download To Score An A

MATH 221 Week 3 Quiz (100% Correct Answers) | Download To Score An A

MATH 221 Homework_ Statistics for Decision-Making 1 | Grade A Formula A recent survey of the alumni of a university inOf all DeVry students, a study found that 43% of them are business majors. The 4 3% would be considered a: dicated that the average salary of 10,000 of its 200,000 graduates was $130,000. The $130,000 would be considered a: Based on past experience, it is predicted that 31% of registered voters in Oklahoma will vote in the next primary. The 31% would be considered an example of: ...

MATH 221 - Week 3 Quiz.