3 years ago

!!PLEASE CLICK THE IMAGE TO ANSWER!!

Mathematics

1 answer:

ratelena [41]3 years ago

3 0

Hi, what exactly is the question ?

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An automobile manufacturer claims that its jeep has a 53.9 miles/gallon (MPG) rating. An independent testing firm has been contr

Advocard [28]

Answer:

Value of the test statistic, $z_{test} = - 1.17$

Step-by-step explanation:

Null hypothesis, $H_{0}: \mu = 53.9$

Alternative hypothesis, $H_{a} : \mu \neq 53.9$

Sample mean, $\bar{X} = 53.7$

Sample size, n = 110

Standard deviation, $\sigma = 1.8$

Significance level, $\alpha = 0.02$

The value of the test statistics is given by the formula:

$z_{test} = \frac{\bar{X} - \mu}{\frac{\sigma}{\sqrt{n} } } \\z_{test} = \frac{53.7 - 53.9}{\frac{1.8}{\sqrt{110} } } \\z_{test} = - 1.17$

7 0

3 years ago

Please help me ASAP!

FinnZ [79.3K]

A. d=50t B. 50,100,150,200,250 C. 50 days

5 0

3 years ago

What is the answer for p? I keep getting 2.571428571 but that not the answer and I’ve tried to round it and still not the correc

DENIUS [597]

Answer:

2.15

Step-by-step explanation:

3 0

3 years ago

A + 3 + 2a = -1 + 3a + 4

Verdich [7]

Answer:The answer is Equal.

Step-by-step explanation:First you need to add A and 2A together. that equals 3a. Since 3 is left , it could be -1 and 4 because it would equal the same thing hope this helped :)

8 0

3 years ago

What is the decimal of 64/100

DENIUS [597]

Answer:

0.64

Step-by-step explanation:

Divide the numerator by the denominator. hope this helps! :))

6 0

3 years ago

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