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Ilia_Sergeevich [38]
3 years ago
6

For the​ following, indicate whether a confidence interval for a proportion or mean should be constructed to estimate the variab

le of interest. Justify your response. Does chewing your food for a longer period of time reduce​ one's caloric intake of food at​ dinner? A researcher requires a sample of 75 healthy males to chew their food twice as long as they normally do. The researcher then records the calorie consumption at dinner.
Mathematics
2 answers:
Black_prince [1.1K]3 years ago
6 0

Answer:

A confidence interval for a mean

Step-by-step explanation:

anzhelika [568]3 years ago
4 0

Answer:

A confidence interval for a mean should be constructed to estimate the variable of interest.

Step-by-step explanation:

The confidence interval for a mean uses the sample mean to estimate the true population mean.  Since it is a confidence interval, instead of a single number for the mean, the result shows a lower estimate and an upper estimate of the mean.  In this experiment, the confidence interval cannot be for a proportion since the population of healthy males is unknown, but the calculation is being done with a sample of 75 healthy males.

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2 years ago
Dionne can fold 175 packing boxes in 50 mìnutes. Elias can fold 120 packing boxes in 40 minutes. How long will it take each pers
Gre4nikov [31]
<h2>Dionne will fold 210 packing boxes in "60 mìnutes" and</h2><h2>Elias will fold 210 packing boxes in "70 mìnutes".</h2>

Step-by-step explanation:

Given,

Dionne can fold 175 packing boxes = 50 mìnute and

Elias can fold 120 packing boxes = 40 minutes

To find, the total time each person to fold 210 packing boxes = ?

∵ Dionne can fold 175 packing boxes = 50 mìnute

∴ In 1 mìnute, Dionne can fold number of packing boxes = \dfrac{175}{50} = 3.5

∴  Dionne can fold 210 packing boxes = \dfrac{210}{3.5} minutes

= 60 minutes

Also,

Elias can fold 120 packing boxes = 40 minutes

∴ In 1 mìnute, Elias can fold number of packing boxes = \dfrac{120}{40} = 3

∴  Elias can fold 210 packing boxes = \dfrac{210}{3} minutes

= 70 minutes

Thus, Dionne will fold 210 packing boxes in "60 mìnutes" and

Elias will fold 210 packing boxes in "70 mìnutes".

8 0
3 years ago
What are the intercepts of the equation 18x-9y+3z=18
IceJOKER [234]
The answer is:  [D]:  " <span>(1, 0, 0), (0, –2, 0), (0, 0, 6) " .
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3 years ago
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A diver is a horizontal distance of 50 feet from a boat and 120 feet beneath the surface of the water. What distance will the di
amid [387]

Answer:

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Step-by-step explanation:

Using Pythagoras' Theorem:

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= 130ft

(Correct me if i am wrong)

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2 years ago
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aleksandr82 [10.1K]

9514 1404 393

Answer:

  yes

Step-by-step explanation:

The given line of reflection is a perpendicular bisector of every segment joining any figure point with its image. Hence the given image trapezoid is a reflection across the line of the given pre-image trapezoid.

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For example, Line f is the perpendicular bisector of AA'.

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2 years ago
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