# Question

Using the phone numbers listed in your telephone directory as your population, randomly obtain 20 samples of size 3. From each phone number identified as a source, take the fourth, fifth, and sixth digits. (For example, for 245-8268, you would take the 8, the 2, and the 6 as your sample of size 3.)

a. Calculate the mean of the 20 samples.

b. Draw a histogram showing the 20 sample means. (Use classes - 0.5 to 0.5, 0.5 to 1.5, 1.5 to 2.5, and so on.)

c. Describe the distribution of ’s that you see in part b (shape of distribution, center, and amount of dispersion).

d. Draw 20 more samples and add the 20 new ’s to the histogram in part b. Describe the distribution that seems to be developing.

a. Calculate the mean of the 20 samples.

b. Draw a histogram showing the 20 sample means. (Use classes - 0.5 to 0.5, 0.5 to 1.5, 1.5 to 2.5, and so on.)

c. Describe the distribution of ’s that you see in part b (shape of distribution, center, and amount of dispersion).

d. Draw 20 more samples and add the 20 new ’s to the histogram in part b. Describe the distribution that seems to be developing.

## Answer to relevant Questions

Using a set of five dice, roll the dice and determine the mean number of dots showing on the five dice. Repeat the experiment until you have 25 sample means. a. Draw a dotplot showing the distribution of the 25 sample ...a. Calculate the p-value, given Ha: < 45 and b. Calculate the p-value, given Ha < 58 and The null hypothesis Ho: µ = 48 was tested against the alternative hypothesis, Ha: µ > 48 A sample of 75 resulted in a calculated p-value of 0.102. If s = 3.5 find the value of the sample mean, . One of the best indicators of a baby’s health is his or her weight at birth. In the United States, mothers who live in poverty generally have babies with lower birth weights than those who do not live in poverty. Although ...The National Health and Nutrition Examination Survey (NHANES) indicates that more U.S. adults are becoming either overweight or obese, which is defined as having a body mass index (BMI) of 25 or more. Data from the Centers ...Post your question

0