After driving 10 miles, in a 1/3 of a day, Mark is trying to figure out how many
1 answer:
Answer:
30 miles
Step-by-step explanation:
Let the number of days = d
in 1/3 of a day, or 1/3d, he drove 10 miles
The equation is:
To find out the number of miles driven in one whole day, we can multiply both sides by 3 or setting up a proportion
<h2>Method 1: Multiplying By 3</h2>10 = 1/3d
10*3 = 1/3d * 3
30 = 1d
30 miles
<h2>Method 2: Proportions</h2>10*3 = 1*1 Cross multiply
30 = 1
-Chetan K
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Answer:
a)
b)
c) Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance
Step-by-step explanation:
Information given
represent the mean for 1
represent the mean for 2
represent the population standard deviation for 1
represent the population standard deviation for 2
sample size for the group 1
sample size for the group 2
z would represent the statistic
Hypothesis to test
We want to check if the two means for this case are equal or not, the system of hypothesis would be:
H0:
H1:
The statistic would be given by:
(1)
Part a
Replacing we got:
Part b
The p value would be given by this probability:
Part c
Since the p value is higher than the significance level provided we have enogh evidence to FAIL to reject the null hypothesis and we can't conclude that the true means are different at 5% of significance