1 answer

1) What is the best description of the following type of variable: Letter grades in a...

Question:

1) What is the best description of the following type of variable: Letter grades in a course What is the best description of
2) What is the best description of the following type of variable: The name of a person What is the best description of the f
ew Chal Window Help B Save 3) What is the best description of the follow variable: MEAN homicide rate per year What is the be
4) What is the best description of the following type of variable: number of bristles on a fly What is the best description o
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6) Confidence interval for plant weight re have a mean weight (5 g) of some plants in a sample and add and subtract 2 SE from
1) What is the best description of the following type of variable: Letter grades in a course What is the best description of the following type of variable: Letter grades in a course 0 A continuous 0 B discrete o c ordinal O D nominal
2) What is the best description of the following type of variable: The name of a person What is the best description of the following type of variable: The name of a person A continuous B discrete 0 C ordinal D nominal
ew Chal Window Help B Save 3) What is the best description of the follow variable: MEAN homicide rate per year What is the best description of the follow variable: MEAN homicide rate per year (averaged across the 50 largest cities in the US) ОА continuous O B discrete o c ordinal O D nominal
4) What is the best description of the following type of variable: number of bristles on a fly What is the best description of the following type of variable: number of bristles on a fly O A continuous discrete o ordinal O D nominal
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6) Confidence interval for plant weight re have a mean weight (5 g) of some plants in a sample and add and subtract 2 SE from it, we get a 95% confidence interval proximately) around the average weight. What does this 95% confidence interval (CI) mean? A there is a 95% chance that the population mean weight of plants lies with the CI B 95% of observations fall within the CI C we are 95% confident that the population mean lies within the CH D 95% of sample means fall within the C 0

Answers

Answer:

1) letter grades in course Ordinal

because letter grades in course have some specific order,

2) the name person Nominal

because nominal are just labels.

3) mean homicide rate per year Continuous

because rate is always continuous. it takes all values.

4) Bristles on a fly Discrete

because number of bristles are always discrete. its not decimal.

5) standard error = (SD) /  \sqrt{n} = 8 / V16 = 2

standard error = 2

6) we are 95% confident that the population mean lies within the CI

.

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