Mathematics, 12.11.2019 19:31 Jenniferwolf
The sample had a mean of 34.6 miles per hour with a standard deviation of 8.4 miles per hour we can assume that vehicle speeds on this street during weekday mornings are approximately normally distributed at a 5% level of significance, can we conclude that the average speed of vehicles on the street during weekday mornings is greater than the speed limit?
Answers: 2
Mathematics, 21.06.2019 12:40, jchidwic
An electronics manufacturer wants to know if customers would be interested in a detachable keyboard for their tables and if so, what the most important features would be. the manufacturer partners with an electronics store to include copies of the survey with every purchase at that store for one week. which of the following best explains why this random sample is unlikely to be a good representative sample of tablet owners' preferences for a detachable keyboard? a) one week is likely not enough time to get a large enough sample. b) most people won't bother to send in the survey, which is likely to skew the results c) there is no way to verify whether the responders to the survey actually own a tablet d) the survey is biased because it was conducted through an electronics store, not the general population
Answers: 2
Mathematics, 21.06.2019 23:00, fortnite83
Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?
Answers: 2
The sample had a mean of 34.6 miles per hour with a standard deviation of 8.4 miles per hour we can...
Biology, 27.08.2019 23:00
English, 27.08.2019 23:00
Social Studies, 27.08.2019 23:00