Mathematics, 16.03.2020 17:37 Davon21
What type of procedure should we use, t or z? A company would like to estimate the average commute time of their employees to work. They take a random sample of 40 employees and ask them how long their commute is in minutes. The sample yields an average of 38 minutes and a standard deviation of 8 minutes. From this they would like to calculate a 95% confidence interval. This scenario should use a ___.A) One sample z procedure for a meanB) One sample t procedure for a meanC) A matched pairs t procedure for the mean difference
Answers: 3
Mathematics, 21.06.2019 17:30
Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?
Answers: 1
Mathematics, 21.06.2019 21:30
He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?
Answers: 1
Mathematics, 21.06.2019 21:30
You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?
Answers: 2
Mathematics, 21.06.2019 23:00
Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1
Answers: 2
What type of procedure should we use, t or z? A company would like to estimate the average commute t...
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