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Dahasolnce [82]
2 years ago
7

In a survey of 155 senior​ executives, 51​% said that the most common job interview mistake is to have little or no knowledge of

the company. Test the claim that in the population of all senior​executives, 45​% say that the most common job interview mistake is to have little or no knowledge of the company. Identify the null​hypothesis, alternative​ hypothesis, test​ statistic, P-value, conclusion about the null​ hypothesis, and final conclusion that addresses the original claim. Use the​ P-value method. Use the normal distribution as an approximation of the binomial distribution.
A) Identify the null and alternative hypothesis
B) Determine the test statistic
C) Determine the p-value
Mathematics
1 answer:
madam [21]2 years ago
8 0

Answer:

B

Step-by-step explanation:

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Richard bought some grapes. He ate 5/8 pound and kept 1 1/8 pounds of grapes. He gave Chris the rest of them. How many pounds of
Furkat [3]

Answer:

2 pounds

Step-by-step explanation:

11/8 + 5/8 = 16/8 = 2

4 0
3 years ago
Factorize 9/16 x2 + xy + 4/9 y2
miskamm [114]
\frac{9}{16}  x^2 + xy +  \frac{4}{9}  y^2 =   (\frac{3}{4} x)^{2} + xy +  (\frac{2}{3}y)^{2} =  (\frac{3}{4} x)^{2} + 2*  \frac{3}{4} x *  \frac{2}{3}y +  (\frac{2}{3}y)^{2} = ( \frac{3}{4}x +  \frac{2}{3} y)^{2}
7 0
2 years ago
The following prism has a base area of 20\pi20π20, pi square units and a volume of 120\pi120π120, pi cubic units. The cylinder h
vivado [14]

Given:

A prism has a base area of 20\pi square units and a volume of 120\pi cubic units.

To find:

The volume of the cylinder if the cylinder has the same base area and height.

Solution:

Volume of a prism is:

V=Bh

Where, B is the base area and h is the height of the prism.

The volume of cylinder is:

V=\pi r^2h

V=Bh

Where, r is the radius, h is the height of the cylinder and B=\pi r^2 is the base area.

Since base area and height of the cylinder are same as the prism, therefore, there volumes are equal.

Hence the volume of the cylinder is 120\pi cubic units.

3 0
3 years ago
You are conducting a left-tailed test of a claim about a population mean when sigma is unknown with a sample size of 7.
Artyom0805 [142]
<h3>Answer:  -3.71</h3>

========================================================

Explanation:

You'll need to use a T table to answer this question. Your stats textbook should have such a table in the back appendix section.

If your textbook doesn't have the proper table, or you don't have your textbook with you, then I recommend searching online for "t table" and you should have tons of free options to choose from.

In the table you'll look for the degrees of freedom row 6, since the degrees of freedom are equal to n-1. In this case, n = 7.

In this row, locate the column labeled  "alpha = 0.005" and you'll be looking at "one tail". The value in this row and column is roughly 3.707

Since we're doing a left tailed test and we want P(t < C) = 0.005, where C is the critical value we're after. This must mean C < 0. So C = -3.707 approximately. Round this to two decimal places and we end up with -3.71

4 0
2 years ago
Miguel is a baseball pitcher. This season, he struck
Kamila [148]
20% of 200 is 40, so H is the correct answers the proportion can be written as 40:200
7 0
3 years ago
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