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Angelina_Jolie [31]
3 years ago
15

Determine whether the sampling method described below appears to be sound or is flawed. In a survey of 511 human resource​ pro

fessionals, each was asked about the importance of the age of a job applicant. The survey subjects were randomly selected by pollsters from a reputable market research firm.
a) it is flawed because it is a census.
b) it is flawed because it is not statistically significant.
c) it appears to be sound because the data are not biased in anyway.
d) it is flawed because it is a voluntary response sample.
Mathematics
1 answer:
Inessa [10]3 years ago
8 0

Answer:

c) it appears to be sound because the data are not biased in anyway.

Step-by-step explanation:

From the information given regarding the sample selection method , the size, the larger sample from which the survey subject were selected, we can conclude that the data is sound and not in anyway biased. The subject were selected from a reputable market research firm, which means the subjects were chosen from a larger sample which is reliable and not just a voluntary pool of subjects. Also, the selection process is randomized. Based on these, there are no flaws which are likely to cause the introduction of bias into the sample selected. Hence, the data is sound and not in any way biased.

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babymother [125]

$40.50 10 boxes at 6lbs = 60lbs

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             60 lbs plus 27 lbs = 87 lbs total weight

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$12+$10+$18.50= $40.50

6 0
3 years ago
A scientist mixes water (containing no salt) with a solution that contains 35% salt. She wants to obtain 245 ounces of a mixture
sesenic [268]

Answer:

140 ounces of water and 105 ounces of 35% salt solution.

Explanation:

Let x be the ounces of water that need to be added and y be the ounces of 35% solution that need to to be added.

We know that the total of ounces of water and of 35% solution must be 245 ounces:

x+y=245

35% of  x is the salt, and since no salt is added with addition of y  liters of water, this must be equal to the amount of salt in the final 15% solution:

0.35x=0.15*245

we solve for  x and get:

x=105

We put this value into x+y=245 and solve for y to get:

y=140

Thus we have 140 ounces of water and 105 ounces of 35% solution.

8 0
3 years ago
Help me please. This is due at 12 tonight
allochka39001 [22]
I think the answer is c
6 0
3 years ago
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A bus travels 36 miles in 45 minutes. Enter the number of miles the bus travels in 60 minutes at this rate.
kompoz [17]

Answer:

The answer would be 48 miles in 60 minutes. I hope that helps!

Step-by-step explanation:

36 x 60 = 2160

45n = 2160

n = 48

8 0
3 years ago
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Statistics how do we determine a percentage
givi [52]
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3 years ago
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