Question
In: Math
You would like to study the height of students at your university. Suppose the average for...
You would like to study the height of students at your university. Suppose the average for all university students is 68 inches with a SD of 20 inches, and that you take a sample of 17 students from your university.
a) What is the probability that the sample has a mean of 64 or more inches? probability = .204793 (is this answer correct or no? and I need help with part b too.)
b) What is the probability that the sample has a mean between 63 and 68 inches?
Solutions
Expert Solution
The answer is done showing all steps and all necessary explanations. Here we assume the height of students to be Normally distributed.
It is clear that -
Now, let us proceed to the
problem. I hope you can easily understand.
milcah answered 1 year agoRelated Solutions
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Your task is to calculate the average height of students in the class. You will gather...
Your task is to calculate the average height of students in the
class. You will gather each of the student’s height and put it in a
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Heights of Students in inches
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true proportion of all university students who have student loans.
According to the study, in a random sample of 215 university
students, 86 have student loans. (a) Construct a 95% confidence
interval for estimating the true proportion of all university
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The university would like to conduct a study to estimate the true proportion of all university...
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true proportion of all university students who have student loans.
According to the study, in a random sample of 215 university
students, 86 have student loans. (a) Construct a 99% confidence
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the true proportion of all university students who have student
loans. According to the study, in a random sample of 215 university
students, 86 have student loans.
(a) Construct a 95% confidence interval for estimating
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(a) Construct a 95% confidence interval for estimating
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