Mathematics, 17.12.2019 20:31 lindalu
In a study of mp3 player popularity, 22% of people in a random sample of 1100 americans age 12 and older indicated that they owned an mp3 player. the owners were 26% of the males and 18% of the females. suppose that there were the same number of males and females in the sample of 1100. (use a statistical computer package to calculate the p-value. round your test statistic to two decimal places and your p-value to four decimal places.)
z =
p =
do these data provide convincing evidence that the proportion of females that owned an mp3 player is smaller than the corresponding proportion of males? carry out a test using a significance level of 0.01.
yes
no
Answers: 2
Mathematics, 21.06.2019 16:30
Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?
Answers: 3
Mathematics, 21.06.2019 17:30
Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?
Answers: 1
Mathematics, 21.06.2019 19:30
Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5
Answers: 1
Mathematics, 22.06.2019 02:30
Megan is making bracelets to sell to earn money for the local animal shelter. it takes her 1/4 hour to pick out all the beads and 1/10 hour to string them.this week, she only has 5 1/4 hours to make bracelets. how many bracelets will megan be able to make?
Answers: 1
In a study of mp3 player popularity, 22% of people in a random sample of 1100 americans age 12 and o...
Spanish, 19.08.2019 01:50
Biology, 19.08.2019 01:50
Mathematics, 19.08.2019 01:50
History, 19.08.2019 01:50
Mathematics, 19.08.2019 01:50
Mathematics, 19.08.2019 01:50
Computers and Technology, 19.08.2019 01:50
Mathematics, 19.08.2019 01:50
Social Studies, 19.08.2019 01:50
Mathematics, 19.08.2019 01:50
Social Studies, 19.08.2019 01:50