Question

Population o El Camino Students (P1- Students who use Instagram more than 7 hours per week, P2- Students who use Instagram less than 7 hours per week) Variable o Time Spent on Instagram per week (7+hours(yes) below 7(no)) GPA (3.0 or higher (yes) or below 3.0(no)) -Boolean Parameter: Proportion "P1, P2" The group MWA in Professor Love's class wants to test using a significance level of 0.05 if students at El Camino Community College who use Instagram for 7 hours or more a week will have a GPA below a 3.0. A total of 150 El Camino students were randomly surveyed and asked the following questions: "Do you use Instagram for 7 hours or more a week?" and "Do you have a GPA of at least a 3.0?" Claim: The students who use Instagram for 7 hours or more a week will have a GPA below a 3.0 and those who don't use it for 7 hours will GPA above a 3.0 Part 1: Ho: The GPAS of ECC students who use Instagram for more than 7 hours a week and ECC students who use Instagram for less 7 hours a week will be the same. P1 P2 H1: The GPAS of ECC students who use Instagram for more than 7 hours per week will be lower than the GPAS of ECC students who use Instagram for less than 7 hours per week. Part 2: Significance Level: 0.05 Part 3: P-Value: > or

Answer 1

Но : Р— Р 0

HPP

45 0.3, n1 150 45105

99 0.66, n2 150 P2 = 51 99

Test and CI for Two Proportions

Method

p₁: proportion where Sample 1 = Event

p₂: proportion where Sample 2 = Event

Difference: p₁ - p₂

Descriptive Statistics

Sample	N	Event	Sample p
Sample 1	150	45	0.300000
Sample 2	150	99	0.660000

Estimation for Difference

Difference	95% Upper Bound for Difference
-0.36	-0.271483

CI based on normal approximation

Test

Null hypothesis	H₀: p₁ - p₂ = 0
Alternative hypothesis	H₁: p₁ - p₂ < 0

Method	Z-Value	P-Value
Normal approximation	-6.69	0.0000

P-value < Alpha

Reject ;- Yes

we have enough evidence to conclude that students who spends more than 7 hours in Insta getting GPA less than 3