Mathematics, 06.05.2020 06:05 janayshas84
A researcher is looking at the impact that television has on children. Children are placed in a room with a variety of toys and a television playing a cartoon. The researcher predicts that the children will spend more than half of their 30 minutes looking at the television. The researcher tested 15 children and found a sample mean of M= 17 minutes spent watching the television with SS = 79. In order to test this hypothesis, what does the researcher need?a. A one-tailed z-score b. A two-tailed z-score c. A one-tailed t statistic d. A two-tailed t statistic
Answers: 3
Mathematics, 21.06.2019 23:40
Find the amplitude of a sinusoidal function that models this temperature variation
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Mathematics, 22.06.2019 02:00
The table below shows the number of free throw shots attempted and the number of shots made for the five starting players on the basketball team during practice. each player's goal is to make 80% of her shots. players number of free throws made free throw attempts kelly 16 20 sarah 25 30 maggie 31 40 liz 44 50 kim 47 60 how many players made at least 80% of their shots? round to the nearest percent.
Answers: 1
Mathematics, 22.06.2019 04:00
1.multiply and simplify if possible. √7x (√x − 7√7) 2. what is the simplest form of the radical expression? 33√2a−63√2a
Answers: 2
A researcher is looking at the impact that television has on children. Children are placed in a room...
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