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Novosadov [1.4K]
1 year ago
9

How to determine if values are significantly different

SAT
1 answer:
Margaret [11]1 year ago
4 0

Answer: go on khan academy

Explanation: they have very topic and videos

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A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 426 gram setting. Based
Blababa [14]

The conclusion of the research is that we reject the null hypothesis and we conclude that the bag filling machine does not work correctly at the 426 gram setting.

<h3>How to solve hypothesis testing?</h3>

We are given;

Population Mean; μ = 426

Sample mean; x' = 433

Sample size; n = 13

Standard deviation; s = 29

significance level; α = 0.05

Let us define the hypotheses;

Null Hypothesis; H₀: μ = 426 g

Alternative Hypothesis; H_a: μ < 426 g

Formula for the z-score here is;

z = (x' - μ)/(s/√n)

z = (433 - 426)/(29/√13)

z = 0.87

From online p-value from z-score calculator, we have;

p-value =  0.1922

This p-value is greater than the significance value and as such we reject the null hypothesis and we conclude that the bag filling machine does not work correctly at the 426 gram setting.

Read more about Hypothesis testing at; brainly.com/question/15980493

#SPJ1

7 0
2 years ago
Identify the compound with the highest magnitude of lattice energy.
expeople1 [14]

Answer:

The lattice energies for the alkali metal halides is therefore largest for LiF and smallest for CsI, as shown in the table below. The ionic bond should also become stronger as the charge on the ions becomes larger.

Explanation:

7 0
2 years ago
Meet at tutoring for high school completion ​
ValentinkaMS [17]
What bro what.............
7 0
2 years ago
Which line from Extremely Loud and Incredibly Close reveals a melancholy tone?
son4ous [18]

Answer:

I wanted to tell her she shouldn't be playing Scrabble yet. Or looking in the mirror. Or turning the stereo any louder than what you needed just to hear it. It wasn't fair to Dad, and it wasn't fair to me.

Explanation:

7 0
3 years ago
Suppose y is inversely proportional to x. If y = –8 when x = –2, find y when x = 32
Annette [7]

Answer: 1/2

Explanation:

When y is inversely proportional to x. This implies that:

y = k/x

If y = –8 when x = –2, then the constant of proportionality will be;

y = k/x

-8 = k/-2

k = (-8 × -2)

k = 16

when x = 32, the value of y will be:

y = k/x

y = 16/32

y = 1/2

5 0
2 years ago
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