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jolli1 [7]
4 years ago
10

Which confidence interval is better, 90% or 95%? Why? (3 sentences required)

Mathematics
1 answer:
Phoenix [80]4 years ago
8 0

95% confidence interval is BETTER than 90% confidence interval

Step-by-step explanation:

95% Confidence Interval means that in the given data set, 95% of the time (after repeated sample experiments), the data set contains the population mean. 90% confidence interval means that 90% of the time, the data set contain the mean.

Therefore a 95% confidence interval gives a higher fidelity/precision with the data statistics than 90% confidence interval.

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Write a division problem. Show two different ways that you can estimate the quotient using compatible numbers.
Levart [38]
98 divided by 7


1. 98-round to 100
    7-round to 10

100 divided by 10=10

So 98 divided by 7 is about 10

That is one way

3 0
3 years ago
Pls help me with this and an explanation
SCORPION-xisa [38]

Answer:

The relationship in this equation is linear, but not proportional. If it was proportional, then replacing x with nx should give ny as the answer. Example:

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5 0
2 years ago
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If f(x)=g(x)+k, describe the relationship between f(x) and g(x).
Alecsey [184]
K is constant. if you increase g(x) by x. f(x) also increases by x
5 0
3 years ago
The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard deviation of 1.4. The distributio
posledela

Answer:

Approximate probability that \overline{X} is less than 2 = 0.1515

Step-by-step explanation:

Given -

Mean (\nu ) = 2.2

Standard deviation (\sigma  ) = 1.4

Sample size ( n ) = 52

Let  \overline{X} be the mean of accidents per week at the intersection during one year (52 weeks) .

probability that \overline{X} is less than 2 =

P(\overline{X}< 2)  = P(\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}}< \frac{2 - 2.2 }{\frac{1.4}{\sqrt{52}}})   Putting (Z =\frac{\overline{X} - \nu }{\frac{\sigma }{\sqrt{n}}})

                 = P(Z< - 1.03)    ( Using Z table )

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7 0
3 years ago
Question is below. 20 characters
erastova [34]

Answer:

Step-by-step explanation:

g(x) = x+4

g(8) = 8+4 = 12

4 0
3 years ago
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