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Tamiku [17]
2 years ago
14

Nikki wants to buy a dog bed that cost $87 she earns six per week for doing chores how many weeks will Nikki have to do her chor

es in order to earn enough money to pay the dog bed
Mathematics
2 answers:
Nataliya [291]2 years ago
8 0
14 1/2 weeks take 87÷6 = 14 and a half weeks before she has enough money to pay for the dog bed
VashaNatasha [74]2 years ago
6 0
87 = 6w
w = 87/6
w = 14.5
15 weeks (if you have to round up)
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A simple random sample of 50 items from a population with 7 resulted in a sample mean of 35.
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The 90% , 99% confidence interval for the population mean is 32.145 < \rm \mu < 35.855 and 31.093 <  \rm \mu < 36.907

<h3>What is Probability ?</h3>

Probability is the study of likeliness of an event to happen.

It is given that

Total Population = 50

Mean = 35

The confidence interval is given by

\rm CI = \mu + z \dfrac{s}{\sqrt n}

\rm \mu is the mean

z is the confidence level value

s is the standard deviation

n is the population width

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34 \rm \pm  1.855

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(b)  The 99% confidence interval for the population mean

99% \rm \alpha / 2  = 0.005

Z=2.57

34  \rm \pm 2.57 * 8 / √50

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Therefore the confidence interval for population mean has been determined.

The complete question is

A simple random sample of 50 items from a population width =7  resulted in a sample mean of 35. If required, round your answers to two decimal places.

a. Provide a 90% confidence interval for the population mean

b. Provide a 99% confidence interval for the population mean

To know more about Probability

brainly.com/question/11234923

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You divide the goal by how much the bars are selling for, or 1513.75/1.25.   The answer to this is 1,211 candy bars.

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