Answer:
parts A answer D) -5.400divided by 8
and for part B is c) -675
Step-by-step explanation:
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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:
$79.65
Step-by-step explanation:
Which one do you want to he answered?
