7.......................................
Answer:
2 pretty sure it is wrong
Step-by-step explanation:
Sorry if it is wrong but that is what I came up with.
Answer:
-1,152
Step-by-step explanation:
(-9)(-4)(-4)(8)
= -1152
Answer:
Step-by-step explanation:
The total tip left by the boys amounted to 15% of the pre-tip bill. Let p represent the pre-tip bill.
Then 0.15p = $10.50 (p is the pre-tip bill and 0.15 represents 15% of that)
Dividing both sides by 0.15 results in an expression for p:
p = $10.50 / 0.15 = $70.
Recall that p is the sum of the costs of the individual meals. If this total was $70 and Michael's dinner cost $40, Elijah's dinner must have cost
$70 - $40, or $30.
Answer:
For this case the p value calculated is higher than the significance level used of 0.05 so then we have enough evidence to FAIL to reject the null hypothesis and the best conclusion for this case would be:
a) do not reject the null hypothesis and conclude that the mean IQ is not greater than 100
Step-by-step explanation:
Information given
We want to verify if he mean IQ of employees in an organization is greater than 100 , the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic for this case is given by:
(1)
The statistic calculated for this case 
The degrees of freedom are given by:
Now we can find the p value using tha laternative hypothesis and we got:
For this case the p value calculated is higher than the significance level used of 0.05 so then we have enough evidence to FAIL to reject the null hypothesis and the best conclusion for this case would be:
a) do not reject the null hypothesis and conclude that the mean IQ is not greater than 100