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topjm [15]
3 years ago
13

You've decided to become a yogi. The Yogaerobics

Mathematics
1 answer:
Anastasy [175]3 years ago
3 0
Well 8 times 15 is 120 so once you know that 8 times 8 is 64 plus 45 witch is 109 so u would have to atleast take 8 classes for the member ship to be worth it. 8
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An SRS of ten brands of breakfast cereals is tested for the number of calories per serving. The following data result: 185, 190,
Pepsi [2]

Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval estimate for the mean number of calories for servings of breakfast cereals is (195.3, 215.7).

<h3>What is a t-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm t\frac{s}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • t is the critical value.
  • n is the sample size.
  • s is the standard deviation for the sample.

From the sample and the significance level of 0.05, we have that the parameters are given by:

\overline{x} = 205.5, s = 14.2, n = 10, t = 2.2622

Hence:

\overline{x} - t\frac{s}{\sqrt{n}} = 205.5 - 2.2622\frac{14.2}{\sqrt{10}} = 195.3

\overline{x} + t\frac{s}{\sqrt{n}} = 205.5 + 2.2622\frac{14.2}{\sqrt{10}} = 215.7

The 95% confidence interval estimate for the mean number of calories for servings of breakfast cereals is (195.3, 215.7).

More can be learned about the t-distribution at brainly.com/question/16162795

8 0
2 years ago
Kendra was asked to find the number of students who planned to attend the evening symphony performance. She was told that 40 per
asambeis [7]

Answer:

Kendra should of divided by 2

Step-by-step explanation:

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3 years ago
PLEASEEEE help Jack, Jill, and Bill each carried a 48-ounce bucket full of water down the hill. By the time they reached the bot
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Hold on I think I know this
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Which graph represents the function f(x) = |x + 3| ?
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Step-by-step explanation:

Si haces una fracción buscando su denominador te da resultados

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2 years ago
What is the square of 8 step by step​
Marysya12 [62]

Step-by-step explanation:

Here is a helpful method I taught my students in my mini lesson...

For you to remember, 22= 4, and 32= 9. Hence the answer to the root of 8 lies between the numbers 2 and 3. However, since the square of 3 equals to 9 which is larger than 8, the root 8 value lies in between the number 2.8 and 2.9.

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3 years ago
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