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Galina-37 [17]
3 years ago
8

An automobile manufacturer has given its van a 39.0 miles/gallon (MPG) rating. An independent testing firm has been contracted t

o test the actual MPG for this van since it is believed that the van has an incorrect manufacturer's MPG rating. After testing 120 vans, they found a mean MPG of 38.8. Assume the population standard deviation is known to be 2.2. Is there sufficient evidence at the 0.02 level to support the testing firm's claim? Make the decision to reject or fail to reject the null hypothesis.
a. Reject Null Hypothesis
b. Fail to Reject Null Hypothesis
Mathematics
1 answer:
swat323 years ago
6 0

I know that the value of the test statistic is z= -1.00 given the information I just read from your upload.

I want to say B. Fail to Reject Null Hypothesis

But I'm not a 100% sure it's actually B

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Alchen [17]
I think it’s C not sure tho
5 0
2 years ago
It took Perla 8 games to score 30 points.At that rate,how many games will it take her to score 45 points?
BARSIC [14]

Answer:

I am pretty sure you can set up a proportion.

12 games is the answer

Step-by-step explanation:

8                  X

_        *         __

30                45


8*45=30x

360=30x

x=12

4 0
3 years ago
Hello please help thanks
Evgen [1.6K]

Answer:

D

Step-by-step explanation:

it states that the snikholes are from underneath when the soil it lose

4 0
3 years ago
Which is an equivalent expression
Harlamova29_29 [7]

Answer:

the answer to that is the second one, 4^-4

8 0
3 years ago
Which statute generates statistical data that is generally cited to support findings.
nadya68 [22]

The statute generates statistical data that is generally cited to support findings is the Truth in Lending Act.

<h3>What is statistical data?</h3>

It should be noted that a statistical data simply means factual information that are recorded for analysis purpose.

In this case, the statute generates statistical data that is generally cited to support findings is the Truth in Lending Act. It helps protect unfair credit billing and card practices.

Learn more about statistics on:

brainly.com/question/15525560

5 0
1 year ago
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