Give examples of water in a solid liquid and gaseous state in the atmosphere

For a recent year, the following are the numbers of homicides that occurred each month in New York City: 38, 30, 46, 40, 46,

lubasha [3.4K]

Answer:

Each month is equally likely

Step-by-step explanation:

Given that for a recent year, the following are the numbers of homicides that occurred each month in New York City:

38, 30, 46, 40, 46, 49, 47, 50, 50, 42, 37, 37.

We have to check whether it is equally likely for each of the 12 months

Set Hypotheses as

H0: All months are equally likely

Ha: atleast two months are not equally likely

(Two tailed chisquare test at 5% significance level)

This is a test for chi square goodness of fit and so assuming H0 to be true

we divide the total equaly among 12 months as expected

Observed Expected Chi square

Jan 38 42.66666667 0.510416667

Feb 30 42.66666667 3.760416667

Mar 46 42.66666667 0.260416667

Apr 40 42.66666667 0.166666667

May 46 42.66666667 0.260416667

June 49 42.66666667 0.940104167

July 47 42.66666667 0.440104167

Aug 50 42.66666667 1.260416667

Sep 50 42.66666667 1.260416667

Oct 42 42.66666667 0.010416667

Nov 37 42.66666667 0.752604167

Dec 37 42.66666667 0.752604167

Total 512 512 10.375

df=11

p value = 0.497

Since p >0.05 our alpha we accept H0

Each month is equally likely

5 0

3 years ago

The total surface area of a right circular cylinder is 84 pie cm square and the altitude is 11 cm .find the radius of the base

djyliett [7]

Answer:

use the formula r = square root of (V / (pi x h))

8 0

3 years ago

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Write two different congruent statements that indicate the triangles in each pair are congruent( Odd number questions only)

ryzh [129]

Answer:

Step-by-step explanation:

17) HI ≅ UH ; GH ≅ TU ; GI ≅ TH

ΔHGI ≅ ΔUTH by Side Side Side congruent

∠G ≅ ∠T ; GI ≅ TH ; ∠GIH ≅ ∠THU

ΔHGI ≅ ΔUTH by Angel Side Angle congruent

19) IJ ≅ KD ; IK ≅ KC ; KJ ≅ CD

ΔIJK ≅ ΔKDC by Side Side Side congruent

∠J ≅ ∠D ; IJ ≅ KD ; ∠I ≅ ∠DKC

ΔIJK ≅ ΔKDC by Angle Side Angle congruent

7 0

3 years ago

For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two-tail

bagirrra123 [75]

Answer:

Option B:

$H_0: \mu = 22.1$

$H_a: \mu \neq 22.1$

Classification:

The hypothesis test is Two-tailed.

Step-by-step explanation:

The mean length of imprisonment for motor-vehicle theft offenders in this country is 22.1 months.

This means that the null hypothesis is that the mean is of 22.1 months, that is:

$H_0: \mu = 22.1$

A hypothesis test is to be performed to determine whether the mean length of imprisonment for motor-vehicle theft offenders in this city differs from the national mean of 22.1 months.

At the alternate hypothesis, we test if this mean is different of 22.1, that is:

$H_a: \mu \neq 22.1$

Which means that the answer is given by option b).

Which of the following is the correct classification of the hypothesis test?

We test if the mean is different from a value, which means that the hypothesis test is Two-tailed.

7 0

3 years ago

Find x, the answer is 5 but how do I get it?

dolphi86 [110]

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6 0

3 years ago

Read 2 more answers