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sasho [114]
3 years ago
11

Kylie starts with $145 in her piggy bank. Each month she adds $20.

Mathematics
1 answer:
djverab [1.8K]3 years ago
4 0

Kylie's first month collection, a1= $ 145

Second month collection , a2= $145+ 20

Third month collection, a3  = $145 +2*20

.

.

.

.

so for n months collection = an-1+20

We get an= 20 + an-1  and a1=145


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A report states that the mean yearly salary offer for students graduating with a degree in accounting is $48,734. Suppose that a
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Solution :

To claim to be tested is whether "the mean salary is higher than 48,734".

i.e. μ > 48,734

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$H_0 : \mu = 48,734$

and $H_1 : \mu > 48,734$

Here, n = 50

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s = 3600

We take , α = 0.05

The test statistics t is given by

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

$t=\frac{49,830 - 48,734}{\frac{3600}{\sqrt 50}}$

t = 2.15

Now the ">" sign in the $H_1$ sign indicates that the right tailed test

Now degree of freedom, df = n - 1

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3 0
3 years ago
H is 60% of m.<br> Also, r is 75% ofm.<br> Work out h as a percentage of r.
ivolga24 [154]

Answer:

h=0.6m

r=0.75m

h=0.6m/0.75m*100 percent of r.

h=6000/75% of r

h=80% of r

Step-by-step explanation:

6 0
3 years ago
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