Mathematics, 23.03.2020 18:54, baileyanne9389
An electrical rm manufactures light bulbs that have a life span that is approximately normally distributed. The population standard deviation is not known. A sample of 30 bulbs are found to have an average life span of 800 hours and a sample standard deviation of 45 hours. Test the hypothesis that µ = 800 against the alternative µ ≠ 800 if a random sample of 30 bulbs has an average life 788 hours. Use P value in your answer.
Answers: 2
Mathematics, 21.06.2019 14:30, gabbypittman20
Shania's test scores in 8 subjects were 88, 91, 85, 74, 69, 72, 80, and 87. shania found the middle number of her scores. which type of measure did she find?
Answers: 1
Mathematics, 21.06.2019 23:30, axelgonzalez9999
Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge
Answers: 1
An electrical rm manufactures light bulbs that have a life span that is approximately normally distr...
Mathematics, 25.10.2019 03:43
Mathematics, 25.10.2019 03:43