Mathematics, 10.03.2020 00:13 Woodlandgirl14
In planning a study on the number of days in the last 30 that high school students texted while driving sometime during the day, a researcher states the hypotheses as H 0 : ¯ x = 15 days H a : ¯ x > 15 days What’s wrong with this? Hypotheses are statements about statistics, not parameters. The research question should not be about the population mean μ but should be about the sample mean ¯ x ˉ . Hypotheses are statements about parameters, not statistics. The research question should not be about the sample mean ¯ x , but should be about the population mean, μ . The null and alternative hypotheses need to be switched. There is nothing wrong with this statement.
Answers: 2
Mathematics, 21.06.2019 12:30
Anumber cube is rolled and a coin is tossed. the number cube and the coin are fair. what is the probability that the number rolled is less than 4 and the coin toss is tails?
Answers: 2
Mathematics, 21.06.2019 15:30
Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?
Answers: 1
Mathematics, 21.06.2019 18:30
The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125
Answers: 2
In planning a study on the number of days in the last 30 that high school students texted while driv...
English, 28.11.2019 21:31
History, 28.11.2019 21:31
Mathematics, 28.11.2019 21:31
Mathematics, 28.11.2019 21:31
Mathematics, 28.11.2019 21:31
Mathematics, 28.11.2019 21:31
History, 28.11.2019 21:31
Social Studies, 28.11.2019 21:31
Social Studies, 28.11.2019 21:31
Mathematics, 28.11.2019 21:31
Health, 28.11.2019 21:31
Chemistry, 28.11.2019 21:31