3 years ago

What is the x value?

Mathematics

1 answer:

kykrilka [37]3 years ago

8 0

Answer:

60 will be the value of x of this question

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Lunna [17]

Answer:

Reject H0 since test statistic <-2.492

Step-by-step explanation:

Given that the American Water Works Association reports that the per capita water use in a single-family home is 74 gallons per day.

n = 25

x bar = 69

s= 8.3

std error = s/sqrt n = $\frac{8.3}{5} \\=1.66$

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(Left tailed test at 5% significance level)

a) Reject H0 if t $\leq$ -2.492

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= $\frac{69-74}{1.66} \\=-3.012\\$

=-3.01

df =24

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3 years ago