Mathematics, 21.05.2021 17:50 ayyyyyyyydubs
PL HELP AMEDIENTLY
A researcher places a radio advertisement offering $32 in exchange for participation in a short study. The researcher accepts the first nine people who respond to the advertisement. Which of the following statements is true about the sample?
It is a valid sample because the first nine people were selected to participate.
It is not a valid sample because it is not a random sample of the population.
It is a valid sample because money was offered to participants.
It is not a valid sample because it is only a short study.
Answers: 3
Mathematics, 21.06.2019 16:00
To make a monster appear large in a movie, a human actor wore a costume and walked through a scale model of a city. the scale used was 1 inch = 15 feet. the actor is 60 inches tall. how tall does the monster appear in the movie? question 5 options: 720 feet 75 feet 4 feet 900 feet
Answers: 2
Mathematics, 22.06.2019 01:40
At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, Ο can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec
Answers: 2
Mathematics, 22.06.2019 05:30
Line a is parallel to line b, m2=4x+44, and m6=6x+36. find the value of x.
Answers: 1
PL HELP AMEDIENTLY
A researcher places a radio advertisement offering $32 in exchange for participa...
Mathematics, 20.08.2020 22:01
History, 20.08.2020 22:01
Mathematics, 20.08.2020 22:01
Mathematics, 20.08.2020 23:01
Mathematics, 20.08.2020 23:01
Mathematics, 20.08.2020 23:01