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4 years ago

PLEASE HELP WITH MY MATH!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Alex787 [66]4 years ago

4 0

Answer:

Step-by-step explanation:

As it is given that Room B has a greater rate then room A so

By looking at the tables given below in the question we see that

in option A the values of Room A is greater then room B so it defies the given statement

in option B the 3rd and 4th value is greater in Room A then B so it also defies the given statement

in option C all the values proved to be correct according to given statement

in Option D All values are smaller so it also defies the given statement.

So the correct statement is Option C

lozanna [386]4 years ago

3 0

I think it would be c if it were a greater rate I don't know if i am right I'll check back with you guys on the answer

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Rom4ik [11]

Answer:

H0: μ ≤ 1.30

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|Test statistic | > 1.833 ; Reject H0

Test statistic = 3.11

Yes

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Step-by-step explanation:

H0: μ ≤ 1.30

H1: μ > 1.30

Samples, X ; 1.36,1.35,1.33, 1.66, 1.58, 1.32, 1.38, 1.42, 1.90, 1.54

Xbar = 14.84 / 10 = 1.484

Standard deviation, s = 0.187 (calculator)

Decison rule :

|Test statistic | > TCritical ; reject H0

df = n - 1 = 10 - 1 = 9

Tcritical(0.05; 9) = 1.833

|Test statistic | > 1.833 ; Reject H0

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(xbar - μ) ÷ (s/√(n))

(1.484 - 1.30) ÷ (0.187/√(10))

0.184 / 0.0591345

Test statistic = 3.11

Since ;

|Test statistic | > TCritical ; We reject H0 and conclude that water consumption has increased

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Pvalue = 0.006

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