Advanced Placement (AP), 02.03.2021 17:20 Nitziaruiz1
At Westville High School there are 315 seniors and 389 juniors. 65% of the seniors have parking
passes and 42% of the juniors have parking passes. The statistics teacher selects a SRS of 30
seniors and a separate SRS of 30 juniors. Let p hat s - p hat j , be the difference in the sample
proportions of
seniors and juniors that have parking passes.
a. What is the shape of the sampling distribution of p hat s - p hat j? Why?
b. Find the mean of the sampling distribution.
c. Calculate and interpret the standard deviation of the sampling distribution.
d. What is the probability that the difference in sample proportions (senior - junior) of students
with parking passes is greater than 30%?
Answers: 3
Advanced Placement (AP), 23.06.2019 17:10
Read the paragraph. we didn’t enjoy our food when we went out to eat, but our friend nelson said that the restaurant normally served some of the best italian food in town. in fact, he said it was one of his favorite places to eat. he said that we should return and give it a second chance. what word best replaces “said” in the last sentence? insisted announced exclaimed shouted
Answers: 1
Advanced Placement (AP), 24.06.2019 00:20
Savings are transferred to businesses for investment through a) banks and financial institutions b) the federal government c) major corporations d) consumer purchases e) state and local governments
Answers: 1
Advanced Placement (AP), 25.06.2019 19:00
Environmental science jobs are expected to grow by how much between now and 2016? a) 5% b) 15% c) 25% d) 100%
Answers: 1
Advanced Placement (AP), 26.06.2019 21:40
Ahigh school teacher wants to study the seating habits of students in the cafeteria to determine if students sit in the same seats or change seats from day to day. she sits in the cafeteria for several days, and without interacting with the students, records where they sit each day. what is a potential benefit of this type of research? there is an independent variable. there is a dependent variable. the researcher can gain personal information about an individual. the participants act normally. the information can be gathered over a period of several years.
Answers: 3
At Westville High School there are 315 seniors and 389 juniors. 65% of the seniors have parking
pas...
Advanced Placement (AP), 04.09.2020 22:01
Mathematics, 04.09.2020 22:01
Mathematics, 04.09.2020 22:01
History, 04.09.2020 22:01
Mathematics, 04.09.2020 22:01
Mathematics, 04.09.2020 22:01
Mathematics, 04.09.2020 22:01
Mathematics, 04.09.2020 22:01