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OlgaM077 [116]
3 years ago
9

Refer to the accompanying data set and construct a 9090​% confidence interval estimate of the mean pulse rate of adult​ females;

then do the same for adult males. Compare the results. Loading... Click the icon to view the pulse rates for adult females and adult males. Construct a 90​% confidence interval of the mean pulse rate for adult females. 71.8 bpm < μ< 79.0 bpm Construct a 90​% confidence interval of the mean pulse rate for adult males. 63.3 bpm < μ 69.9 bpm. Compare the results.
A. The confidence intervals do not​ overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males.
B. The confidence intervals do not​ overlap, so it appears that adult females have a significantly higher mean pulse rate than adult males.
C. The confidence intervals​ overlap, so it appears that adult males have a significantly higher mean pulse rate than adult females.
D. The confidence intervals​ overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males.
Mathematics
1 answer:
Lilit [14]3 years ago
5 0

Answer:

B i think

Step-by-step explanation:

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ivann1987 [24]
Sarah: 48 * 1/8
Jane: 36 * 1/9
you could do 2 things here
a. solve the problem by multiplying the two "fractions" together for each person to get a number, and the larger number means the larger piece
or
b. take a step back and look at it piece by piece
first lets compare
Sarah has a piece of Ribbon equal to 48 inches while
 Jane's ribbon is only 36 inches in length
so Sarah has the most ribbon to start out with
now lets compare the two fractions
1/8 and 1/9
the smaller the denominator the bigger the number actually is
because the denominator just means "divided by" this number, so the smaller the number, the less "groups" the numerator is being split up into.
now in that case, 1/8 is the bigger fraction, and this fraction belongs to Sarah
now if Sarah has the larger Ribbon and the larger fraction, then she automatically has the larger ribbon.

however, in this problem it asks for "how much longer"
so we have to treat each of the numbers for each person as if it was a fraction
48 inches for Sarah and 36 inches for Jane will be over 1, showing that it is 48 and 36 "wholes" or whole numbers
48/1 and 36/1
now we multiply 48/1 by 1/8 because that i how much ribbon sarah needs
multiply the numerator by the numerator and the denominator by the denominator
48/1* 1/8 = 48/8 or simplified to 6/1 or 6 inches of ribbon for Sarah
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Sonbull [250]

Answer:

25.97!!!!

Step-by-step explanation:

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Standard form is the way regular numbers are written.

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If the number of containers, y, produced by a factory is proportional to the number of hours, x, the factory is open, which grap
aleksandr82 [10.1K]

Using proportions, it is found that the first graph, which is increasing, could represent the relationship.

The more hours the factory is open, the more containers are produced, hence, the relationship is direct proportional.

  • Direct proportional are represented by increasing graphs, that is, the higher the value of x, the higher the value of y.

In this problem, the first graph(top) is increasing while the second(bottom) is decreasing, hence, the first graph could represent the relationship.

To learn more about proportions, you can take a look at brainly.com/question/24372153

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