Abdul used a probability simulator to roll a 6-sided number cube and flip a coin 100 times. The results are shown in the tables
below:
Number on
the Cube Number of
Times Rolled
1
18
2
10
3
12
4
25
5
3
6
32
Heads Tails
45
55
Using Abdul's simulation, what is the probability of rolling a 2 on the number cube and the coin landing heads up? (5 points)
Number on
the Cube Number of
Times Rolled
1
18
2
10
3
12
4
25
5
3
6
32
Heads Tails
45
55
Using Abdul's simulation, what is the probability of rolling a 2 on the number cube and the coin landing heads up? (5 points)
1 answer:
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Answer:
We conclude that the mean wedding cost is less than $30,000 as advertised.
Step-by-step explanation:
We are given the following data set:(in thousands)
29100, 28500, 28800, 29400, 29800, 29800, 30100, 30600
Formula:
where are data points,
is the mean and n is the number of observations.
Sum of squares of differences = 3408750
Population mean, μ = $30,000
Sample mean, = $29512.5
Sample size, n = 8
Alpha, α = 0.05
Sample standard deviation, s = $ 697.82
First, we design the null and the alternate hypothesis
We use one-tailed t test to perform this hypothesis.
Formula:
Putting all the values, we have
Now,
Since,
We fail to accept the null hypothesis and reject it.
We conclude that the mean wedding cost is less than $30,000 as advertised.