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Genrish500 [490]
3 years ago
9

Use the words "ten times" to compare the number of children who have a dog 36,580 with the number of children who have a rabbit

3,658?
Mathematics
2 answers:
ElenaW [278]3 years ago
8 0
The number of children who have dogs is ten times more than the number of children who have a rabbit.
Fudgin [204]3 years ago
6 0

Answer: the number of people who own dogs is "10 times" more than the number of rabbit owners.

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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
Karo-lina-s [1.5K]

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.

In this case, for a degrees of freedom DF=20-2=18, we have the test statistic t=±1.7341 that satisfies the condition.

Solution of the hypothesis test

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

First, we state the null and alternative hypothesis:

H_0: B_1=0\\\\H_1: B_1 \neq 0

The significance level is \alpha=0.10.

The degrees of freedom for a simple regression model is:

DF=n-2=20-2=18

The standard error estimated of the slope is 0.0053.

The test statistic t is calculated as:

t=\frac{B_1}{SE}=\frac{0.0214}{0.0053} = 4.0377

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

P=0.00078

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

7 0
3 years ago
A $320 dollar suit is marked down by 30% find the sales price
marta [7]

Answer:

224

Step-by-step explanation:

6 0
2 years ago
The Cubs have won
Naily [24]

First you need to figure out the games the Cubs lost. 11-7=4, so they lost 4 games.

Now you must plug in the ratio of games lost to games played. You know they lost 4 games and played 11, so the ratio would be 4:11.

I hope you find this helpful :)

4 0
3 years ago
Aflati valorile rapoartelor numerelor:125 si 25,13 si 169
Marat540 [252]
I believe your answer is 53
5 0
3 years ago
Read 2 more answers
Which expression is equivalent to this one?
Alinara [238K]

Hello,

Which expression is equivalent to this one?

1/6(x - 18)

Distributive property: (1/6x) - (1/6 x 18)

= 1/6x

= -18

Answer: 1/6x * (-18)

4 0
3 years ago
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