Mathematics, 20.09.2020 15:01 isaiah7507
Most dermatologists recommend using sunscreens that have a Sun Protection Factor (SPF) of at least 30. One of the authors wanted to find out whether the SPF of sunscreens used by students at her school exceeds this value on average? To collect data, the author surveyed students in her introductory statistics course and found that in a sample of 52 students the mean SPF was 34.55 and the standard deviation of SPF was 20.12. The data were not strongly skewed.
Required:
Use the Theory-Based Inference applet to find and report the 95% confidence interval for the parameter of interest.
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 14:20
In simplified exponential notation, the expression a^2•a^-3•a 1/a 0
Answers: 1
Mathematics, 21.06.2019 14:30
Ablock of wood is a cube whose side is x in. long. you cut off a 1-inch thick piece from the entire right side. then you cut off a 3-inch thick piece from the entire top of the remaining shape. the volume of the remaining block is 2,002 in3. what are the dimensions of the original block of wood?
Answers: 2
Mathematics, 21.06.2019 17:30
Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2
Answers: 3
Mathematics, 21.06.2019 17:30
One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)
Answers: 1
You know the right answer?
Most dermatologists recommend using sunscreens that have a Sun Protection Factor (SPF) of at least 3...
Questions
Mathematics, 08.01.2021 19:20
Mathematics, 08.01.2021 19:20
Mathematics, 08.01.2021 19:20
Mathematics, 08.01.2021 19:20
Mathematics, 08.01.2021 19:20
Geography, 08.01.2021 19:20
Mathematics, 08.01.2021 19:20
Mathematics, 08.01.2021 19:20
English, 08.01.2021 19:20
