Identify whether the numbers are statistics or parameters.    a. Of all US third grade teachers, 32% say that knowing cursive writing is an essential skill.    b. Of the 500 US third grade teachers polled, 34% say that knowing cursive writing is an essential skill.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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1. Identify whether the numbers are statistics or parameters.
   a. Of all US third grade teachers, 32% say that knowing cursive writing is an essential skill.
   b. Of the 500 US third grade teachers polled, 34% say that knowing cursive writing is an essential skill.

2. The body temperature of a healthy adult follows a Normal distribution with a mean of 98.25°F and a standard deviation of 0.73°F.
   a. Find the probability that a randomly selected adult will have a body temperature between 98°F and 99°F. 
   b. Find the mean and standard deviation of the sampling distribution of the mean body temperature for an SRS of 50 adults.
   c. Find the probability that the mean body temperature of an SRS of 50 adults is between 98°F and 99°F.

3. Why is the standard deviation of a sampling distribution smaller than the standard deviation of the population?

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