Below You Are Given Ages That Were Obtained by Taking $\mu$

question 131

Essay

Below you are given ages that were obtained by taking a random sample of 9 undergraduate students. Assume the population has a normal distribution.
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a.What is the point estimate of $\mu$ ?
b.Determine the standard deviation.
c.Construct a 90% confidence interval for the average age of undergraduate students.
d.Construct a 99% confidence interval for the average age of undergraduate students.
e.Discuss why the 99% and 90% confidence intervals are different.

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Definitions:

Malloc()

A standard library function in C that allocates a specified amount of memory and returns a pointer to the beginning.

Calloc()

A library function in the C programming language that allocates memory space for an array of elements, initializes them to zero, and returns a pointer to the allocated memory.

Realloc()

A function in C that resizes the memory block pointed to by a pointer, potentially moving it to accommodate the new size.

Free()

A function in C programming used to release previously allocated memory back to the operating system or memory manager.