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7nadin3 [17]
3 years ago
10

×

Mathematics
1 answer:
Elza [17]3 years ago
5 0

Joan worked 22 hours, and Erin worked 11 hours. All together (including Sara's hours) they worked 61 hours.

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Rachel recorded the number of calls she made at work during the week:
Dmitry [639]

The chi-squared test statistic will be 3.11. The test statistic is contrasted with a predicted value based on the Chi-square distribution.

<h3>What is the chi-squared test statistic?</h3>

Finding the squared difference between the actual and anticipated data values, then dividing that difference by the expected data values, constitutes the test statistic.

The formula for the chi-squared test statistic is;

\sum \frac{(O_i-E_i)^2}{E_i } \\\\

Where,

\rm O_i is the observed value

\rm E_i is the expected value

The chi-square test statics is;

\rm( \frac{18-18}{18} )^2 +( \frac{14-18}{18} )^2 + (\frac{24-18}{18} )^2+( \frac{16-18}{18} )^2 \\\\ 0+ \frac{16}{18}+ \frac{36}{18} +\frac{4}{18}\\\\ \frac{56}{18} \\\\ 3.11

Hence, the chi-squared test statistic will be 3.11.

To learn more about the chi-squared test statistic refer;

brainly.com/question/14082240

#SPJ1

5 0
2 years ago
PLS HELP I NEED TO TURN THIS IN SOON
victus00 [196]

Answer:

I am pretty sure 40%

Step-by-step explanation:

if not srry

7 0
3 years ago
Read 2 more answers
Which of these numbers is the smallest A .0134, B .802, C .47, D.0562, E .137
Georgia [21]
I think your answer would be D.0562
3 0
3 years ago
Read 2 more answers
The circumference of a circle is10π feet what is the radius
sweet-ann [11.9K]

Answer:

r = 5 ft

Step-by-step explanation:

The circumference of a circle is given by

C = 2*pi*r

We are given the circumference

10 *pi = 2 * pi *r

Divide each side by 2 *pi

10 pi/ 2 pi = 2*pi*r/2pi

5 =r

8 0
3 years ago
It’s a Class of 24 students,5/6 are boys.<br> How many boys are in the class?
Hoochie [10]

Answer:

son 14

Step-by-step explanation:

por que solo se resta para saber el numero de niños

4 0
2 years ago
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