3 years ago

Rewarding brainly and if you dont look for a unanswered question i posted or lmk if you want me to post one

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

7 0

3,-2 because you start with the x- axis first then the y- axis

Sergeeva-Olga [200]3 years ago

4 0

Answer:

(-2,3)

Step-by-step explanation:

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In an effort to estimate the mean of amount spent per customer for dinner at a major Lawrence restaurant, data were collected fo

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The 99% confidence interval for the population mean is 22.96 to 26.64

Step-by-step explanation:

Consider the provided information,

A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,

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Thus, 1-α=0.99

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The boundaries of the confidence interval are:

$\mu-z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80-2.58\times \frac{5}{\sqrt{49}}=22.96\\\mu+z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80+2.58\times \frac{5}{\sqrt{49}}=26.64$

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