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3 years ago

6

Lauren and her family went to Maggiano's for dinner and spent $92.00. Lauren's family wanted to leave a 15% tip. How much will L

auren's family pay for their meal, including tip?

1 answer:

Andrews [41]3 years ago

6 0

Answer:

105.8

Step-by-step explanation:

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One variable examined is the survival rate 10 years after tagging. The scientists observed that 10 of the 50 metal tagged pengui

Oksana_A [137]

Answer: 90% confidence interval would be $(-0.2483,-0.0717)$

Step-by-step explanation:

Since we have given that

n₁ = 50

Number of metal tagged penguins survived = 10

So, $p_m=\dfrac{10}{50}=0.2$

n₂ = 50

Number of electronic tagged penguins = 18

So, $p_e=\dfrac{18}{50}=0.36$

So, at 90% confidence interval, z = 1.28

So, interval would be

$(p_m-p_e)\pm z\sqrt{\dfrac{p_m(1-p_m)}{n}+\dfrac{p_e(1-p_e)}{n}}\\\\=(0.2-0.36)\pm 1.28\sqrt{\dfrac{0.2\times 0.8}{50}+\dfrac{0.36\times 0.64}{50}}\\\\=-0.16\pm 0.0883\\\\=(-0.16-0.0883,-0.16+0.0883)\\\\=(-0.2483,-0.0717)$

Hence, 90% confidence interval would be

$(-0.2483,-0.0717)$

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3 years ago

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Vesnalui [34]

Answer:

14, 15

Step-by-step explanation:

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3 years ago

Find the sum seven and twenty-five hundredths added to nine and four tenths

Alona [7]

Answer:

16.65

Step-by-step explanation:

7.25 + 9.4 = 16.65

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3 years ago

There were 23 bales of hay in the barn sam stacked more bales in the barn today. There are now 68 bales of hay in the barn. How

Deffense [45]

Okay, so you do
$68-23$ <u />
Because the difference will be how much bales of hay Sam stored
and the difference is $45$ <u />

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