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soldi70 [24.7K]
2 years ago
10

X+5y; use x = 1 5/6, and y = 3 1/6

Mathematics
1 answer:
Phantasy [73]2 years ago
3 0

Answer:

53/3

Step-by-step explanation:

1 5/6=11/6

3 1/6=19/6

---------------

11/6+5(19/6)=11/6+95/6=106/6

simplify

53/3

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A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced.
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Answer:

CI=(66.54,78.46)                                  

Step-by-step explanation:

Given : A new catalyst is being investigated for use in the production of a plastic chemical. Ten batches of the chemical are produced. The mean yield of the 10 batches is 72.5% and the standard deviation is 5.8%. Assume the yields are independent and approximately normally distributed.

To find : A 99% confidence interval for the mean yield when the new catalyst is used ?

Solution :

Let X be the yield of the batches.

We have given, n=10 , \bar{X}=72.5\% , s=5.8%

Since the size of the sample is small.

We will use the student's t statistic to construct a 995 confidence interval.

\bar X\pm t_{n-1,\frac{\alpha}{2}}\frac{s}{\sqrt n}

From the t-table with 9 degree of freedom for \frac{\alpha}{2}=0.005

t_{n-1,\frac{\alpha}{2}}=t_{9,0.005}

t_{n-1,\frac{\alpha}{2}}=3.250

The 99% confidence interval is given by,

CI=72.5 \pm 3.25\frac{5.8}{\sqrt{10}}

CI=72.5 \pm 5.96

CI=(72.5+5.96),(72.5-5.96)

CI=(66.54,78.46)

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3 years ago
TODAYTHIS WEEKCREDITS$Patricia was setting up a room with tables for an event. The room had9 maple tables, 10 poplar tables, 5 c
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As in each table can seat 8 people and the probability you need to find is about the first person you can ignore this data.

Probability that the first person to enter the room will be randomly seated at a maple table:

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8 months ago
What is 14% of $59.99 and how do I figure this problem?
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37.392÷0.09 to the nearest hundredth
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Answer:

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Step-by-step explanation:

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2 years ago
The data were collected from a statistics class. The column head gives the​ variable, and each of the other rows represents a st
Basile [38]

Answer:

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Step-by-step explanation:

We are given the following in the question:

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Thus, gender is a categorical variable. Numbers are only used to represent the data.

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