Mathematics, 01.08.2020 01:01 briizy
A research study investigated differences between male and female students. Based on the study results, we can assume the population mean and standard deviation for the GPA of male students are µ = 3.5 and σ = 0.05. Suppose a random sample of 100 male students is selected and the GPA for each student is calculated. What is the probability that the random sample of 100 male students has a mean GPA greater than 3.42?
Answers: 1
represents the sample mean GPA for each student.![P(\overline{X}3.42)=P(\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\dfrac{3.42-3.5}{\dfrac{0.5}{\sqrt{100}}})\\\\=P(Z\dfrac{-0.08}{\dfrac{0.5}{10}})\ \ \ [Z=\dfrac{\overline{X}-\mu}{\dfrac{\sigma}{\sqrt{n}}}]\\\\=P(Z1.6)\\\\=1-P(Z](/tpl/images/0716/2587/a3ce1.png)
Another question on Mathematics
Mathematics, 21.06.2019 16:40
Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0
Answers: 1
Mathematics, 21.06.2019 17:30
Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?
Answers: 2
You know the right answer?
A research study investigated differences between male and female students. Based on the study resul...
Questions
Health, 12.09.2019 05:20
Mathematics, 12.09.2019 05:20
Mathematics, 12.09.2019 05:20
Mathematics, 12.09.2019 05:20
Mathematics, 12.09.2019 05:20
