X= 3/2 like the fraction 3 over 2
Answer:
The value of an appropriate test statistic for the car dealer to use is -4.
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
The test statistic is:
In which X is the sample mean, is the value tested at the null hypothesis, is the standard deviation and n is the size of the sample.
In this problem:
Then
The value of an appropriate test statistic for the car dealer to use is -4.
Answer:
30 hours
Step-by-step explanation:
30+45x=60+45x
45x=30+45x
x=30
Answer: 1 / 2
Step-by-step explanation:
I've attached the answer.
1 = 53
2 = 115
3 = 107
4 = 73
5 = 115
6 = 66
I’ll do the rest later