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bixtya [17]
2 years ago
15

Proportion Problem. Each year Delta Dental does a survey of parents concerning the tradition of the Tooth Fairy. A random sample

of 1,058 parents were asked about how much money they leave for a tooth and questions concerning how their child responded to the concept of the Tooth Fairy. In one question, 508 parents indicated that their child saved the money they got for their tooth. You are asked to Test to see if this proportion is different from .5. Use an alpha level of .05. What is the p-value for your test statistic (z*)? I just want the answer. Use 4 decimal places for your answer and use the proper rules of rounding.
Mathematics
1 answer:
cupoosta [38]2 years ago
3 0

Answer:

Step-by-step explanation:

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Hank bought 5 meters of ribbon for $4. The ribbon costs -$0.008, 0.08, $0.8- per -millimeter, centimeter, kilometer-. Choose one
aleksandrvk [35]
To determine the cost of each meter of the ribbon, we divide the cost for 5 meters of ribbon by 5. That is,
                                        x = $4 / 5
where x is the cost of each meter. Simplifying will give us an answer of $0.8/m. Converting this to per mm. 
                                   ($0.8/m) x (1 m/ 1000 mm)
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5 0
2 years ago
which geometric series represents 0.4444... as a fraction? a) 1/4, 1/40, 1/400, 1/4,000 b) 1/40, 1/400, 1/4,000, 1/40,000 c) 4/1
xenn [34]

Answer: \frac{4}{10}+\frac{4}{100}+\frac{4}{1,000}+\frac{4}{10,000}


Step-by-step explanation:

The given geometric series are:

a)\frac{1}{4}+\frac{1}{40}+\frac{1}{400}+\frac{1}{4,000}

on simplifying in decimals, we get

0.25+0.025+0.0025+0.00025=0.27775\neq0.4444

b) \frac{1}{40}+\frac{1}{400}+\frac{1}{4,000}+\frac{1}{40,000}

on simplifying in decimals, we get

0.025+0.0025+0.00025+0.000025=0.027775\neq0.4444

c)\frac{4}{10}+\frac{4}{100}+\frac{4}{1,000}+\frac{4}{10,000}

on simplifying in decimals, we get

0.4+0.04+0.004+0.0004=0.4444

Thus, this geometric series represent 0.4444.

d)\frac{1}{10}+\frac{1}{100}+\frac{1}{1,000}+\frac{1}{10,000}

on simplifying in decimals, we get

0.1+0.01+0.001+0.0001=0.1111\ \neq0.4444

7 0
2 years ago
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An internet company conducts a global consumer survey to help multinational companies understand different consumer attitudes th
vladimir1956 [14]
Roper is not using a simple random sample. The samples are calculated to get 500 males and 500 females. This would be very unlikely or improbable to take place in a simple random sample. The design that they are using is a stratified sampling (dividing the population into groups) with 2 strata and these are the males and females.
4 0
2 years ago
The table shows different quantities of flour and the number of cookies that can be made with each quantity of flour. If the rel
nirvana33 [79]
3/4 = 6/x....3/4 = 6/8...notice that proportions are nothing but equivalent fractions

x = 8
4 0
2 years ago
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Which function does the graph represent
Doss [256]

Answer:

C

Step-by-step explanation:

Obviously this a log function.  What you have to know about the parent graph of a log function is that it goes through the origin (0, 0).  Ours appears to go through -1, so it has moved 1 unit to the left, and our appears to have moved up 3 units.  The parent graph for the log function in standard form is

f(x) = log(x - h) + k.

where h indicates the side to side movement, and k represents the up and down movement.  In our standard form, we fit in -1 as follows: (x - (-1)), which of course is equivalent to (x + 1).  Because our function has moved up 3 units, our k is a positive 3.  So the translation of the parent graph to what we see is

g(x) = log(x + 1) + 3, choice C

8 0
2 years ago
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