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katrin [286]
3 years ago
11

Unfabricante de piezas para ensamblar bicicletas afirma que al menos el 95 por ciento de las piezas que fabrica, cumple con las

especificaciones requeridas. Si examinamos una muestra aleatoria de 150 piezas y encontramos que 12 de ellas resultaron defectuosas, ¿Se podrádecir que el dato muestral proporciona suficiente evidencia para rechazar la afirmación del fabricante?. Utilice un error alfa del 0.05.
Mathematics
1 answer:
Mandarinka [93]3 years ago
7 0

Answer:

Step-by-step explanation:

me hablo espanol

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Georgia is making cupcakes at her bakery. she has enough batter to make 377 chocolate cupcakes, and 935 vanilla cupcakes. if she
olchik [2.2K]
All you have to do is add the number of vanilla and the number of chocolate, then divide the result by 24. You round up the result to the nearest whole number.

Like so:
377+935=1312
1312/24=54.67
55

So, she would have to refill it 55 times to use all the batter.
6 0
3 years ago
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For what value of a does 9 equal 1/27 a + 3​
Yakvenalex [24]

Answer:

a = 162

Step-by-step explanation:

9 = 1/27 a +3

Subtract 3 from each side

9-3 = 1/27 a +3-3

6 = 1/27 a

Multiply each side by 27

6*27 = 1/27 a *27

162 = a

6 0
3 years ago
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The boxplot below shows salaries for CPAs and Actuaries in a town. 30 40 50 60 70 80 90 100 Salary (thousands of $) Actuary CPA
MA_775_DIABLO [31]

Answer: 75%

Step-by-step explanation:

In order to answer this question, we have to know the meaning of a box plot. Boxplots are especially useful in statistical analysis and gives us a meaningful range of values. A box plot consists of 2 shapes, which are the box part and the extended lines. The short sides of the  box and the vertical line in the middle of the box represent a certain percentage of the values. The vertical line in the boxplot is the median of your dataset. For example, according to the shape given in the question, the median value for CPA's is 50 and this is closer to the left side of the box. This means that the first half ogf the dataset (when ranked from the smallest to the greatest) is closer to each other. The sides of the box represent the values at the 25% and 75% of the values respectfully.

For example, if we have 100 values, we rank them in order and the 25th value corresponds to the left side of the boxplot (named first quartile), 50th value (which is also the median)  corresponds the vertical line in the box and and the 75the value corresponds to the right side of the box (named third quartile).

The extended arms are calculated as accordingly: IQR=(3rd quartile value-1st quartile value). Left extended arm is first quartile-1.5*IQR and right extended arm is third quartile+1.5*IQR. However, this information is not directly related to this question.

Now, this question should seem simpler. The median salary of CPA is 50 and this is equal to left side of the Actuary boxplot, which corresponds to the 25% of actuaries. As a result, CPA median salary is less than 75% of the Actuaries (100%-25%).

3 0
3 years ago
Given k // l, what can you conclude about these triangles? Check all that apply.
olasank [31]

Answer:

A C E

Step-by-step explanation:

it would be A C E because the corresponding angles are similar, angles 5 and 3 are both alternate exterior angles, the following verticals angles(1 and 4) are equivalent to each other. so yeah, its NOT ABC.

8 0
4 years ago
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51 - (2c+3)= 4 (c+5)+c
stellarik [79]

Answer:

Hello! The answer would be = 4

Step-by-step explanation:

4 0
3 years ago
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