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Artist 52 [7]
3 years ago
7

r^{2/3}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
aksik [14]3 years ago
5 0

Step-by-step explanation:

{r}^{ \frac{7}{8}  +  \frac{2}{3} }

{r}^{ \frac{21 + 16}{24} }

{r}^{ \frac{37}{24} }

Hope it helps:)

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3 years ago
From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 21.
zzz [600]

Answer: (20.86, 22.52)

Step-by-step explanation:

Formula to find the confidence interval for population mean :-

\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}

, where \overline{x} = sample mean.

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\sigma = Population standard deviation.

By considering the given question , we have

\overline{x}= 21.69

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Then, 95% confidence interval for the amount of time spent on administrative issues will be :

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=21.69\pm (1.96)(0.223221)

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3 years ago
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