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
Answer:
23
Step-by-step explanation:
It will take them 10 days to have the same amount of credits.
The only thing I did was to keep adding what they where earning per day!
5+6.50+7.21=18.71 30-18.71=$11.29 left
(-8,1) im not sure but I think that this is the answe