Using the data given in the table below: Moviegoer Snack Spending (n = 10)
Age (X) Spent (Y)
30 2.85
50 6.50
34 1.50
12 6.35
37 6.20
33 6.75
36 3.60
26 6.10
18 8.35
46 4.35
(a) Use Excel, MegaStat, or MINITAB to calculate the correlation coefficient.
(b) Use Excel to find t025 for a two-tailed test at alpha = .05.
(c) Calculate the t test statistic.
(d) Should we reject the null hypothesis of zero correlation?

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25