Mathematics, 15.04.2021 22:40 messyquestions
Mercury is a heavy metal that can cause severe health problems in even small concentrations. Fish and shellfish efficiently concentrate mercury into their flesh, so it is important to monitor seafood for its mercury content. An extensive study conducted in 1980 concluded that the mean mercury level in oysters from the White Bear estuary was 0.021 parts per million (ppm) with a population standard deviation of 0.032 ppm. In 2012, a sample of 47 oysters from the same estuary exhibited a sample mean mercury concentration of 0.017 ppm. Can you conclude that the 2012 mercury concentration is lower than in 1980
Answers: 1
Mathematics, 21.06.2019 15:00
1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.
Answers: 1
Mathematics, 21.06.2019 16:30
Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.
Answers: 3
Mathematics, 21.06.2019 22:00
Which of the following is an example of conditional probability
Answers: 3
Mercury is a heavy metal that can cause severe health problems in even small concentrations. Fish an...
Health, 24.11.2020 17:10
Mathematics, 24.11.2020 17:10
Law, 24.11.2020 17:10
Chemistry, 24.11.2020 17:10
Mathematics, 24.11.2020 17:10
Social Studies, 24.11.2020 17:10
Mathematics, 24.11.2020 17:10
German, 24.11.2020 17:10
History, 24.11.2020 17:10
English, 24.11.2020 17:10
Mathematics, 24.11.2020 17:10