Answer:
Observational Study
Step-by-step explanation:
Because she stands by the front door and records each student
Answer: v1 = 200 km/h
v2 = 320 km/h
Malcolm's maximum speed was 200 km/h.
Ravi's maximum speed was 320 km/h.
Step-by-step explanation:
Answer: A is the answer
Explanation: A plane consist of 3 point but it can also be called by one specific point. And in the figure A there is one specific point. We can call it plane A
Answer:
a.) one sample t test
b.) H0 : μ = 59.3
c.) H1 : μ > 59.3
d.) μ = 59.3 ; σ = 39.84
e.) xbar = 79.4 ; s = 61.36
Test statistic = 3.16
Step-by-step explanation:
Given the sample data:
49.00 49.00 49.00 49.00 49.00 63.00 63.00 63.00 63.00 63.00 199.00 199.00 199.00 199.00 199.00 38.00 38.00 38.00 38.00 38.00 48.00 48.00 48.00 48.00 48.00 49.00 63.00 199.00 38.00 48.00
Sample size, n = 30
Using calculator :
xbar from the data above = 79.4
Standard deviation = 61.359
H0 : μ = 59.3
H1 : μ > 59.3
Test statistic :
(Xbar - μ) ÷ (σ/sqrt(n)
σ = 34.83
(79.4 - 59.3) ÷ (34.83/sqrt(30))
20.1 ÷ 6.359
Test statistic = 3.16
Answer:
there are 1250 readers
Step-by-step explanation:
r = readers
4 percent of readers sent letter = 50 recieved letters
r * 4 percent = 50
r * .04 =50
divide by .04 on each side
r = 50/.04
r =1250
