Mathematics, 21.04.2021 02:00 joooosshhhh
Researchers in education are performing a study to see if listening to soothing music while taking a standardized math test increases the mean test score. The hypotheses are H 0 : mu=79 versus H a : mu>79 , and the p-value for the hypothesis test was 0.035.
At the 5 % significance level , what should the researchers conclude?
1. There is sufficient evidence to conclude that listening to soothing sounds increases the mean test score.
2. There is sufficient evidence to conclude that listening to soothing sounds decreases the mean test score.
3. There is insufficient evidence to conclude that listening to soothing sounds decreases the mean test score.
4. none of the above
Answers: 1
Mathematics, 21.06.2019 12:50
In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition?
Answers: 2
Mathematics, 21.06.2019 13:00
Which statement best describes a square? a. a special rectangle that has four right angles b. a special trapezoid that has four sides of equal length c. a special rectangle that has four sides of equal length d. a special trapezoid that has four right angles
Answers: 1
Mathematics, 21.06.2019 13:20
The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once
Answers: 1
Researchers in education are performing a study to see if listening to soothing music while taking a...
Mathematics, 18.05.2021 07:20
English, 18.05.2021 07:20
Mathematics, 18.05.2021 07:20
History, 18.05.2021 07:20
Mathematics, 18.05.2021 07:20
Mathematics, 18.05.2021 07:20
Advanced Placement (AP), 18.05.2021 07:20
Mathematics, 18.05.2021 07:20