Answer:
A: -8
Step-by-step explanation:
4 * -2 is -8, and A is on that point.
Answer:
4 miles
Step-by-step explanation:
3/4 divided by 3= 1/4
3/3 = 1
1x4=4
Answer: One sample z test for means
Step-by-step explanation:
From the information given, the sample size is large. It is greater than 30. Again, the population standard deviation is given. This means that the test statistic would be the z score which is determined by the formula
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = population standard deviation
The probability value would be determined from the normal distribution table.
Therefore, the hypothesis test that should be used is
One sample z test for means