Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 136 to 191 cm and weights of 37 to 150 kg. Let the predictor variable x be the first variable given. The 100 paired measurements yield x = 168.06 cm, y = 81.58 kg, r=0.201, P-value = 0.045, and y = -102 +1.17x. Find the best predicted value of y (weight) given an adult male who is 185 cm tall. Use a 0.01 significance level. Click the icon to view the critical values of the Pearson correlation coefficient r.

The best predicted value of y for an adult male who is 185 cm tall is (Round to two decimal places as needed.) kg.

The heights (in inches) of 30 adult males are listed below. A frequency distribution show the frequency and relative frequency using five classes. 

2.) Determine the level of measurement of the variable. height of a tree

3.) Determine the level of measurement of the variable. an officer's rank in the military 

Here are summary statistics for randomly selected weights of newborn girls: n = 36, x = 3222.2 g, s = 686.7 g. Use a confidence level of 99% to complete parts (a)

through (d) below.

a. Identify the critical value ta/2 used for finding the margin of error.

4/2=0

(Round to two decimal places as needed.)

b. Find the margin of error.

E= 0 g

(Round to one decimal place as needed.)

c. Find the confidence interval estimate of p.

(Round to one decimal place as needed.)

d. Write a brief statement that interprets the confidence interval. Choose the correct answer below.