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alukav5142 [94]
3 years ago
10

Did I get this correct? If not please help me!!!

Mathematics
1 answer:
OLga [1]3 years ago
7 0

Answer:

I thinck u did get it write ....

Step-by-step explanation:

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In the general population, the mean IQ is 100 with a standard deviation of 15. Dr. Robbins wants to see if a class of statistics
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From the information given, a right-tailed test using the z-distribution is appropriate.

At the null hypothesis, it is <u>tested if the class of statistics students is not significantly smarter than the general population</u>, that is, their mean IQ is of at most 100, hence:

H_0: \mu \leq 100

At the alternative hypothesis, it is <u>tested if they are significantly smarter</u>, that is, their mean IQ is greater than 100, hence:

H_1: \mu > 100

  • We are testing if the mean is <u>greater than a value</u>, hence it is a right-tailed test.
  • We have the <u>standard deviation for the population</u>, hence, the z-distribution is used.

A similar problem is given at brainly.com/question/23413408

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It is possible to get all 8 in one go. However, it is very unlikely because...

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