Mathematics, 03.08.2019 03:30 bbanfield1
Listed below are time intervals (min) between eruptions of a geyser. assume that the "recent" times are within the past few years, the "past" times are from around 20 years ago, and that the two samples are independent simple random samples selected from normally distributed populations. do not assume that the population standard deviations are equal. does it appear that the mean time interval has changed? is the conclusion affected by whether the significance level is 0.10 or 0.01?
Answers: 1
Mathematics, 21.06.2019 16:20
Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?
Answers: 1
Mathematics, 21.06.2019 16:50
Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?
Answers: 1
Mathematics, 21.06.2019 21:00
Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out
Answers: 2
Listed below are time intervals (min) between eruptions of a geyser. assume that the "recent" times...
Mathematics, 23.07.2019 11:30
Biology, 23.07.2019 11:30
Physics, 23.07.2019 11:30
Biology, 23.07.2019 11:30
Social Studies, 23.07.2019 11:30