Question
In: Statistics and Probability
A TV sports reporter at a soccer game approaches random people entering a stadium in Toronto and...
A TV sports reporter at a soccer game approaches random people entering a stadium in Toronto and asks which team they think will win. Toronto or Detroit? Which sampling technique does this represent?
a.Convenience sampling b. Simple random sampling
c. Judgement sampling d. Stratified sampling
Solutions
Expert Solution
a. Convenience sampling
Explanation:
For the given scenario, data is collected by using convenience sampling because people in the stadium are convinced for taking response and then data was collected.
orchestra answered 2 years agoRelated Solutions
The ages of a random sample of people who attended a recent soccer match are as...
The ages of a random sample of people who attended a recent
soccer match are as follows:
23 35 14 37 38 15 45
12 40 27 13 18 19 23
37 20 29 49 40 65 53
18 17 23 27 29 31 42
35 38 22 20 15 17 21
a. Find the mean age.
b. Find the standard deviation.
c. Find the coefficient of variation.
Two people play the game of Count 21 by taking turns entering a 1, 2, or...
Two people play the game of Count 21 by taking turns entering a
1, 2, or 3, which
is added to a running total. The player who adds the value that
makes the total
reach or exceed 21 loses the game. Create a game of Count 21 in
which a player
competes against the computer, and program a strategy that always
allows the
computer to win. On any turn, if the player enters a value other
than 1, 2, or...
In a random sample of 200 people, 135 said that they watched educational TV. Find the...
In a random sample of 200 people, 135 said that they watched
educational TV. Find the 95% confidence interval of the true
proportion of people who watched educational TV.
A.
0.325 < < 0.675
B.
–1.96 < < 1.96
C.
0.6101 < < 0.7399
D.
0.6704 < < 0.6796
A random sample of 15 people was asked to record how much TV they watched every...
A random sample of 15 people was asked to record how much TV
they watched every day for a week. The total number of hours each
person watched during the week is displayed below.
a. Is a normal approximation appropriate here?
A. Yes
B. No
The data are shown below.
0.0
7.8
8.6
9.7
11.3
17.7
19.0
19.1
19.5
20.4
22.9
25.8
33.8
36.8
39.2
b. If a normal approximation is appropriate, find the
probability that a randomly selected person...
A random sample of 15 people was asked to record how much TV they watched every...
A random sample of 15 people was asked to record how much TV
they watched every day for a week. The total number of hours each
person watched during the week is displayed below.
The data are shown below.
0.0
7.8
8.6
9.7
11.3
17.7
19.0
19.1
19.5
20.4
22.9
25.8
33.8
36.8
39.2
b. If a normal approximation is appropriate, find the
probability that a randomly selected person in
the population watches less than 9 of TV per
week....
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