Answer:
density = 0.7 gm/cm³
Explanation:
Density can be calculated using the following rule:
Density = mass / volume
We are given that:
mass = 2.75 grams
volume = 4 cm³
Substitute with the givens in the above equation to get the value of the density as follows:
density = 2.75 / 4
density = 0.6875 which is approximately 0.7 gm/cm³
Hope this helps :)
Answer: y=8
Step-by-step explanation: 4y-4+3y=52
Answer:
Now we can calculate the p value with this probability:
Since the p value is higher than the significance level provided of 0.1 we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean for this case is higher than 31.1MPG using a significance level of 10%. So then the cliam makes sense
Step-by-step explanation:
Information given
represent the sample mean
represent the population deviation
sample size
represent the value to verify
represent the significance level
z would represent the statistic
represent the p value
Hypothesis to test
We want to check if the true mean for this case is higher than 31.1 MPG, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
Since we know the population deviation the statistic would be given by:
(1)
Replacing the info given we got:
Now we can calculate the p value with this probability:
Since the p value is higher than the significance level provided of 0.1 we have enough evidence to FAIL to reject the null hypothesis and we can conclude that the true mean for this case is higher than 31.1MPG using a significance level of 10%. So then the cliam makes sense
$50+$10 (The coupon)=$60 to spend
$60/12=5 uniform shirts.
Zoe's unit rate is 0.625
Explanation
Just divide because remember unit rates are out of 1.