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kramer
2 years ago
13

Bill is selling stickers to raise money for a charity. He sold 36 stickers on the first day and 23 on the second day. He had 26

stickers left at the end of the second day. How many stickers did Bill have to start with?
33
59
85
92
Mathematics
2 answers:
pochemuha2 years ago
6 0
He started with 92 stickers
Hatshy [7]2 years ago
6 0
Bill started out with 85 stickers
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Answer:

(a) <em>p</em>-value = 0.043. Null hypothesis is rejected.

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To test for the significance of the population mean from a Normal population with unknown population standard deviation a <em>t</em>-test for single mean is used.

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P (t₁₀ > 1.91) = 0.043.

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The null hypothesis is rejected at 5% level of significance.

(b)

The alternate hypothesis is:

<em>Hₐ</em>: <em>μ</em> < <em>μ₀</em>

The sample size is, <em>n</em> = 17.

The test statistic value is, <em>t</em> = -3.45 ≈ 3.50.

The degrees of freedom is, (<em>n</em> - 1) = 17 - 1 = 16.

Use a <em>t</em>-table t compute the <em>p</em>-value.

For the test statistic value of -3.50 and degrees of freedom 16 the <em>p</em>-value is:

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The alternate hypothesis is:

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The null hypothesis is not rejected at 5% level of significance.

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