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2 years ago

What is nine hundred in decimal form

Mathematics

2 answers:

NARA [144]2 years ago

5 0

9 because when you add the decimal you are adding it in front of the two zeros making it only nine

ss7ja [257]2 years ago

4 0

The answer is 954, have a good day

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A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 419 gram setting. It

Pachacha [2.7K]

Answer:

We reject the null hypothesis, and accept the alternative hypothesis.

So, it means that the machine is under filling the bags

Step-by-step explanation:

Given

Null Hypothesis

$H_0:\mu = 419$ --- works correctly at 419g

Alternate Hypothesis

$H_0:\mu < 419$ --- under fills the bag

$n =15$ --- the sample

$\bar x = 409$ --- the mean

$\sigma = 22$ --- the standard deviation

$\alpha = 0.05$ --- the significance level

Required

What is the decision rule

Since n is less than 30, we make use of t test

$t = \frac{\bar x - \mu}{\sigma/\sqrt n}$

$t = \frac{409 - 419}{22/\sqrt{15}}$

$t = \frac{-10}{22/ 3.87}$

$t = \frac{-10}{5.58}$

$t = -1.792$

Calculate df

$df = n-1$

$df = 15-1$

$df = 14$

Calculate the p value from the Student's t-distribution at df = 14 and $t = -1.792$

$p =0.047$

Given that: $\alpha = 0.05$

Since $p < \alpha$

So, it means that the machine is under filling the bags

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2 years ago

the bathroom shower in celia's house uses 7 gallons of water per minute. if Celia installs a water saving device,the shower will

Svet_ta [14]

She saves 54 gallons.

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2 years ago

Determine is an outlier is present in the given data set: 43, 69, 78, 88, 54, 73, <br> 54, 59,70

kodGreya [7K]

Answer:

Step-by-step explanation:

43 is the most the lowest number while the others are around the same range

Hope this helps! Pls mark brainliest!

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3 years ago

What is -0.8a-8=0.2a ?

nikklg [1K]

I hope this helps you

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3 years ago

What is -64/5 as a mixed number

Slav-nsk [51]

Your answer to the question:

-12 4/5

And then decimal form:

-12.8

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2 years ago