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erik [133]
3 years ago
14

Fred is constructing a 95% confidence interval to estimate the average length (in minutes) of movies he watches. His random samp

le of 15 movies averaged 114 minutes long with a standard deviation of 11 minutes. What critical value and standard error of the mean should he use?
Mathematics
1 answer:
sergejj [24]3 years ago
5 0
Like what we suppose to do

like adding all together??????????
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What is the area of the label on the box of oatmeal with a radius of 9.3 centimeters and a height of 16.5 centimeters? Round to
solong [7]
Area means to multiply, so 9.3x16.5=153.4 cm.
5 0
4 years ago
4x2 divided by 3 please help thanks you
Burka [1]

Answer:

2 2/3 or 2.6... in decimal

Step-by-step explanation:

4*2 = 8

8/3 = 2 2/3

4 0
3 years ago
Patricia produces wall calendars which she sells at the weekend. Each calendar requires 12 sheets of paper and a cover. The pape
Tems11 [23]

Answer:

Patricia sell each calendar for $7.68

Step-by-step explanation:

Each calendar requires 12 sheets of paper and a cover.

Cost of 200 sheets = $50

Cost pf 12 sheets =\frac{50}{200} \times 12=3

Cost of 100 covers = $40

Cost of 1 cover =\frac{40}{100}=0.4

Patricia estimates that the other costs for producing 1 calendar come to $3.

So, total cost for 1 calendar = $3+$0.4+$3=$6.4

She sells the calendars for 20% more than the amount that it costs her to produce them.

So, Selling price of 1 calendar =6.4+20\%(6.4)=6.4+0.2(6.4)=7.68

Hence Patricia sell each calendar for $7.68

3 0
4 years ago
Write the money amount as a fraction terms of dollars<br><br> $1.00?
mash [69]
Hello Amontessemprit,

Answer:<span> $1.00 = 1
</span>
<span />How I got my answer,

Rewrite the decimal number as a fraction with 1 in the denominator<span>
$1.00 = <span>$1.00/1
</span></span>
<span><span /></span>Multiply to remove 0 decimal places. Here, you multiply top and bottom by 10^0
<span><span>$1.00/1 </span>×<span> 1/1</span> = <span>1/1
</span></span>
<span><span /></span>Simplify the improper fraction, <span>= 1
</span>
<span />In conclusion, <span>$1.00 =<span> 1</span></span>
7 0
4 years ago
On her Farm Melissa grew 4749 pumpkins Valeria grew 2391 more pumpkins than Melissa
Veseljchak [2.6K]
7140 pumpkins Valeria grew
5 0
4 years ago
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