Mathematics, 05.03.2021 04:30, lbbeanss
Music streaming services are the most popular way to listen to music. Data gathered over the last 12 months show Apple Music was used by an average of 1.73 million households with a sample standard deviation of 0.46 million family units. Over the same 12 months Spotify was used by an average of 2.17 million families with a sample standard deviation of 0.33 million. Assume the population standard deviations are not the same. Using a significance level of 0.01, test the hypothesis of no difference in the mean number of households picking either service.
Answers: 2
Mathematics, 21.06.2019 16:40, pagezbills18
What is the ratio of the change in y-values to the change in x-values for this function? a) 1: 13 b) 2: 5 c) 5: 2 d) 13: 1
Answers: 3
Mathematics, 22.06.2019 02:10, gabrielolivas59
Martha is training for a duathlon, which includes biking and running. she knows that yesterday she covered a total distance of over 55.5 miles in more than than 4.5 hours of training. martha runs at a speed of 6 mph and bikes at a rate of 15.5 mph.
Answers: 1
Music streaming services are the most popular way to listen to music. Data gathered over the last 12...
Chemistry, 14.11.2019 01:31
Chemistry, 14.11.2019 01:31