2 years ago

What is the answer to 0.7 × 9

Mathematics

2 answers:

EastWind [94]2 years ago

8 0

Answer:

6.3

Step-by-step explanation:

Because you use a cacluator.

blondinia [14]2 years ago

6 0

Answer:

$\boxed{6,3}$

Step-by-step explanation:

$0,7 \times 9$

$= \frac{7}{10} \times 9$

$= \frac{63}{10}$

$= 6,3$

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Consider H0: μ = 45 versus H1: μ < 45. A random sample of 25 observations produced a sample mean of 41.8. Using α = .025 and

a_sh-v [17]

Given
$H0: \ \mu=45 \\ \\ H1: \ \mu\ \textless \ 45$
This is a one-tailed test.

$z= \frac{41.8-45}{6/ \sqrt{25} } = \frac{-3.2}{6/5} = \frac{-3.2}{1.2} =-2.6667$

$P(z\ \textless \ -2.6667)=0.00383$

Since the p-value of the sample statistic (0.00383) is less that the significant level (0.025), we reject the null hypothesis.

5 0

2 years ago

PLEASE HELP! Brainliest answer for first correct answer...

trasher [3.6K]

check picture below