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svlad2 [7]
2 years ago
9

A random sample of 150 adults was given an IQ test. It was found that 78 of them scored higher than 100. Based on this, compute

a 99% confidence
interval for the proportion of all adults whose IQ score is greater than 100. Then find the lower limit and upper limit of the 99% confidence interval.

Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.
Mathematics
1 answer:
11Alexandr11 [23.1K]2 years ago
5 0

Answer:

answer in the link

Step-by-step explanation:

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I need help plzz someone help meee :)
Eddi Din [679]

Answer:

Table 1 = Proportional

y is 7 times x

Table 2 = Not proportional

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
4.
Reptile [31]

Answer:

c.) 7.5

Step-by-step explanation:

There is a part-to-whole relationship here.

2 customers : 8 minutes= ? customers : 30 minutes

                                         <em>or...</em>

2/8=x/30

Cross multiply:

8x=60

Divided both sides by 8:

x=60/8=7.5

I hope this helps!

8 0
3 years ago
HELP!!!!!!!!!!!!!!!!!
jek_recluse [69]

Answer:

option A

Step-by-step explanation:

the statement tell us that she slides the triangle 2 units down, so the vertical axis is the one that we are going to modify

we have the points: (1,2), (3,3) and (4,1)

so to these points we subtract "2" to the variable Y

I mean:

(1,2):   2-2=0

(3,3):    3-2=1

(4,1):    1-2=-1

finally we have:

(1,0), (3,1) and (4,-1)

7 0
3 years ago
Explain step by step now to arrive at a single rational number to represent the following expression
tatyana61 [14]

Answer:

shhheeeeeeesh that's is hard good luck

7 0
2 years ago
Your friend Michelle just graduated and has two job offers that she is considering. Both job offers pay the same, but JobA
just olya [345]

Money offered to Michelle per annum in Job A = $1700

Number of years she will work in job A = 5

Percentage of earnings per annum for her retirement plan = 6.60%

Money she will earn will be the simple interest at the end of 5 years.

We know that :

\color{plum}{ \tt{Simple \:  interest  =  \frac{Principle  \ \: \times  \: Rate  \:  \: \times \:  \:  Time}{100} }}

Principal = $1700

Rate = 6.60%

Time = 5 years

Which means :

=  \frac{1700 \times 6.60 \times 5}{100}

=  \frac{56100}{100}

= \color{plum}\$561

We also know that :

\color{plum}\tt \: Amount = Principal + Interest

Amount Michelle will earn at the end of 5 years for her retirement plan :

= 1700 + 561

=\color{plum}\bold{\$ 2261}

2261 can be rounded off to 2260.

Therefore, Michelle will earn <u>$2260</u> at the end of 5 years for her retirement plan.

5 0
3 years ago
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