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3 years ago

Susan threw a softball 42 yards on her first try and 51 1/2 yards on her second try.

Mathematics

2 answers:

OLEGan [10]3 years ago

7 0

Answer:

hey it is 9ft and 1/2

Step-by-step explanation:

ohaa [14]3 years ago

6 0

Just subtract 51 by 42 and then add the 1/2

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4 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It

Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, $\bar{x}$ = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}$

We use one-tailed(left) z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92$

Now, $z_{critical} \text{ at 0.05 level of significance } = -1.64$

Since,

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3 years ago

What is the percentage change for 60 to 35

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Let x represent the percentage change. The percentage change is a factor that the original number is multiplied to get the new number.

60*x = 35
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