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Vika [28.1K]
3 years ago
5

A random sample of 27 items is drawn from a population whose standard deviation is unknown. The sample mean is x¯ = 940 and the

sample standard deviation is s = 15. Use Appendix D to find the values of Student's t.
Mathematics
1 answer:
babunello [35]3 years ago
5 0

Answer:

t value= 99%

Step-by-step explanation:

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What lengths of two sides of a triangle are seven and 11. Which could not be the length of the third side?
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Your height and weight are examples of which level of measurement? A. Ordinal B. Nominal C. Ratio D. Interval
Ivahew [28]

Answer:

C. Ratio

True for this case we have a clear definition of the 0 since the 0 for the heigth and the weigth represent absence of mass. And the differences between numerical values for the two variables are meaingful.

Step-by-step explanation:

We want to know which type of variable represent the weigth and the height. Let's analyze one by one the options given:

A. Ordinal

False since by definition an ordinal variable is "is a categorical variable for which the possible values are ordered". And for this case the height and the weigth are not categorical since represent quantitative data.

B. Nominal

False by definition and ordinal variable is which one that can't be represented by numeric values, and for this case the weight and the height are not example of this definition.

C. Ratio

True for this case we have a clear definition of the 0 since the 0 for the heigth and the weigth represent absence of mass. And the differences between numerical values for the two variables are meaingful.

D. Interval

False on this scale we don't have a clear definition of the 0. And for this case the heigth and the weight have a known definition of the 0 corresponding to the absence of mass. And since the ratios are meaingful for the heigth and the weigth then can't be an interval variable.

8 0
3 years ago
A spinner is numbered 1 through 5 is spun 3 times. What is the probability of spinning a number less than 3, then a number great
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For the first two,the probability is 0.4, and for # 3,the probability is .2
8 0
4 years ago
Please help this needs to be done today I'll give brainliest if you're correct
Lapatulllka [165]

Answer:

Simile and personification, explanations below!

Step-by-step explanation:

"Like the straw in her pink lemonade" = simile

A simile compares two things using like or as. In this case, the story compares the bending of the microphone to bending the straw in lemonade.

"Her voice an impostor" = personification

Personification describes a object with human-like qualities or characteristics. In this case, a voice can't actually be an impostor as it is not a living person.

6 0
2 years ago
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