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Harrizon [31]
3 years ago
15

Hailey was given a box of assorted chocolates for her birthday. Each night, Hailey treats herself to some chocolates. The number

of chocolates remaining in the box tt days after Hailey's birthday can be modeled by the equation C=-4t+24.C=−4t+24. What is the yy-intercept of the equation and what is its interpretation in the context of the problem?
Mathematics
2 answers:
olganol [36]3 years ago
7 0

Answer:

C=30-5t

Step-by-step explanation:

The y-intercept of the function is 30 which represents the number of chocolates in the original box.

that's the correct answer^^^^

Llana [10]3 years ago
5 0

Answer:

y intercept is 24 (i think)

Step-by-step explanation:

-4t is x

+24 is y

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8 0
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Let’s assume that, over the years, a paper and pencil test of anxiety yields a mean score of 35 for all incoming college freshme
vovangra [49]

Answer:

|t| = 2.235 > 2.093

we rejected null hypothesis.

It is not coming from population

Step-by-step explanation:

<u>Step:-1</u>

Let’s assume that, over the years, a paper and pencil test of anxiety yields a mean score of 35 for all incoming college freshmen.

μ = 35

small sample size n =20

mean of the sample   x⁻ = 30

standard deviation of  (S) = 10

<u>Null hypothesis</u> :- The difference between x⁻  and μ is not significant

<u>Alternative hypothesis</u>:- The difference between x⁻  and μ is significant

that is μ ≠ 35

<u>Level of significance </u>:-∝ =0.05

<u>The test statistic:- </u>

<u></u>t = \frac{x^{-} - population mean}{\frac{S}{\sqrt{n} } }<u></u>

<u>substitute all values in above equation</u>

μ = 35 ,n =20

mean of the sample   x⁻ = 30

standard deviation of  (S) = 10

t = \frac{30 - 35}{\frac{10}{\sqrt{20} } }

t= -2.235

|t| = 2.235

The degrees of freedom γ =n-1 =20-1 =19

By tabulated value of 't' for 19 degrees of freedom at 5% level of significance.= 2.093 for two tailed test.(see attached diagram below)

<u>conclusion</u>:-

|t| = 2.235 > 2.093

we rejected null hypothesis.

It is not coming from population

<u></u>

8 0
3 years ago
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