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shepuryov [24]
3 years ago
6

Decimal Addition

Mathematics
1 answer:
docker41 [41]3 years ago
5 0

4: 0.99

5: 0.66

6: 0.79

7: 5.2

8: 4.86

9: 4.3

I hope I helped! Also, one thing when you adding decimals or multiplying them, pretend the decimal point isn't even there. Then, once you have your answer, you just add the decimal in the middle. Basically just adding like in first grade! Super easy and I hope I helped!

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A local trucking company fitted a regression to relate the travel time (days) of its shipments as a function of the distance tra
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Answer:

The critical values for α = 0.10 are t=±1.7341.

Step-by-step explanation:

The critical values for a two tailed test are the values of t that are placed in the limit of the significance level. If the test statistic t is greater than this critical values, the null hypothesis is rejected.

To determine this values, we first divide the significance level by 2. With a t-table or app, we can determine the t values for P(x>|t|)=α/2=0.05.

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In this problem we want to prove if the slope of the regression model is different from 0, by means of a hypothesis test.

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The standard error estimated of the slope is 0.0053.

The test statistic t is calculated as:

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The P-value for a two-tailed test for a t=4.0377 and DF=18 is:

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The P-value is smaller than the significance level, so the effect is statistically significant. The null hypothesis is rejected.

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