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Korvikt [17]
3 years ago
10

A researcher initially plans to take an SRS of size 160 from a certain population and calculate the sample mean. Later, the rese

archer decides to increase the sample size so that the standard deviation of the sampling distribution of will be half as big as when using a sample size of 160.
What sample size should the researcher use?
Mathematics
1 answer:
lara [203]3 years ago
3 0

Answer:

640

Step-by-step explanation:

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Sung is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices.
Alexus [3.1K]

Answer:

Step-by-step explanation:

Use the equation

89 < 75 + 0.7*M                Subtract 75 from both sides

89 - 75 < 0.7M                  Combine

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14/0.7 < M

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If M goes over 20 then the flat rate is cheaper.

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Suppose you round 43,257,529 to43,300,000.to what place value did you round the number
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3 years ago
Which category would have the lowest conditional relative frequency?
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6 0
2 years ago
Hair colors are an example of which type of data?
kotykmax [81]

Answer:

Nominal data are used to label variables without any quantitative value. Common examples include male/female (albeit somewhat outdated), hair color, nationalities, names of people, and so on. In plain English: basically, they're labels (and nominal comes from "name" to help you remember). You have brown hair (or brown eyes).

4 0
2 years ago
Which statement is true about the discontinuities of the function f(x)?
Leno4ka [110]

Answer:

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Step-by-step explanation:

The denominator zeros can be found by factoring:

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Neither of the denominator factors is cancelled by the numerator factor, so each represents a vertical asyptote, not a function hole.

The asymptotes are at the values of x where the denominator is zero:

  2x -3 = 0   ⇒   x = 3/2

  3x +1 = 0   ⇒   x = -1/3

8 0
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