Mathematics, 28.07.2021 16:40 mari0869
A medical study was investigating if getting a flu shot actually reduced the risk of developing the flu. From a group of adult volunteers, researchers randomly assigned half to receive an injection that contained the drug believed to reduce the risk of getting the flu and the other half to receive an injection containing no active ingredient (i. e. sugar water). A hypothesis test was performed and a p-value of 0.0002 was obtained. Which of the following statements is true?
a. The small p-value indicates strong evidence to reject the null hypothesis. Because an experiment was not performed, it cannot be concluded that the reduction in the risk was caused by the flu shot.
b. The small p-value indicates strong evidence to reject the null hypothesis. Because an experiment was performed, it can be concluded that the reduction in the risk of getting the flu was caused by the flu shot.
c. The small p-value indicates that there is not enough evidence to reject the null hypothesis. Therefore, it cannot be concluded that the reduction in the risk of getting the flu was caused by the flu shot.
d. The small p-value indicates strong evidence to reject the null hypothesis. Even though an experiment was performed, causation cannot be inferred. That is, it cannot be concluded that the reduction in the risk of getting the flu was caused by the flu shot.
Answers: 2
Mathematics, 21.06.2019 17:30, msdmdsm1186
Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?
Answers: 3
Mathematics, 21.06.2019 18:00, tatibean26
The ratio of wooden bats to metal bats in the baseball coach’s bag is 2 to 1. if there are 20 wooden bats, how many metal bats are in the bag?
Answers: 1
Mathematics, 21.06.2019 20:00, codyshs160
The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212
Answers: 1
A medical study was investigating if getting a flu shot actually reduced the risk of developing the...
Mathematics, 28.01.2020 02:31
History, 28.01.2020 02:31
Mathematics, 28.01.2020 02:31
History, 28.01.2020 02:31
English, 28.01.2020 02:31