Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

1. A researcher claims that the perfect temperature to set the office thermostat at is 73 degrees. To test this claim, you survey 47 offices

1. A researcher claims that the perfect temperature to set the office thermostat at is 73 degrees. To test this claim, you survey 47 offices and determine their average temperature to be set at 75 degrees with a standard deviation of 1.2 degrees. a. The hypothesis test needed is called the Select an answer: t-test, X^2 GOF test, 1-Pop z-test, X^2 Independence Test, Dependent t-test, 2-Samp z-test z-test,

b. because Select an answer: testing to see if the known distribution is still valid, the population standard deviation is given, counts of people are given with no standard deviations, testing to see if 2 variables are related or not, the sample standard deviation is given, 2 samples are a 'before and after' situation, 2 samples with their population standard deviations are given.

2. A researcher claims that the perfect temperature to set the office thermostat at is 73 degrees. To test this claim, you survey 47 offices and determine their average temperature to be set at 75 degrees with a standard deviation of 1.2 degrees.

a. The hypothesis test needed is called the Select an answer: X^2 Independence Test, X^2 GOF test, 2-Samp z-test, 1-Pop z-test t-test, Dependent t-test z-test,

b. because Select an answer: 2 samples with their population standard deviations are given, 2 samples are a 'before and after' situation, the sample standard deviation is given, the population standard deviation is given, testing to see if 2 variables are related or not, counts of people are given with no standard deviations, testing to see if the known distribution is still valid.

3. A researcher claims that more than 47% of the college students don't get enough sleep. A survey conducted determined, of the 2174 respondants, 1130 did not get enough sleep. a. The hypothesis test needed is called the Select an answer: 1-Pop z-test, Dependent t-test, z-test, 2-Samp z-test, X^2 Independence Test, X^2 GOF test, t-test

b. because Select an answer: 2 samples with their population standard deviations are given, 2 samples are a 'before and after' situation, the sample standard deviation is given, testing to see if the known distribution is still valid, counts of people are given with no standard deviations, the population standard deviation is given, testing to see if 2 variables are related or not.

4. A company claims their cookware can withstand more heat than their competitor. Company A provides a population standard deviation of 2.8F2.8F. Company B provides their population standard deviation of 3.4F3.4F. You receive 36 assorted cookware pieces from Company A and find they have an average temperature threshold of 525F525F. Company B sends you 32 assorted cookware pieces and you find they have an average temperature threshold of 520F520F.

a. The hypothesis test needed is called the Select an answer: 2-Samp z-test, X^2 GOF test, t-test, z-test, 1-Pop z-test, Dependent t-test, X^2 Independence Test

b. because Select an answer: testing to see if 2 variables are related or not, 2 samples are a 'before and after' situation, the sample standard deviation is given, the population standard deviation is given, counts of people are given with no standard deviations, 2 samples with their population standard deviations are given, testing to see if the known distribution is still valid.

5. A pharmaceutical company claims that their new drug lowers the patient's blood pressure. A study was done and the patients data was collected: the blood pressure before and after taking the drug. A sample of 25 participants is identified and their data is separated out. a. The hypothesis test needed is called the Select an answer: Dependent t-test, X^2 Independence Test, 1-Pop z-test, t-test, z-test, X^2 GOF test, 2-Samp z-test

b. because Select an answer: 2 samples are a 'before and after' situation, counts of people are given with no standard deviations, the population standard deviation is given, the sample standard deviation is given, testing to see if the known distribution is still valid, testing to see if 2 variables are related or not, 2 samples with their population standard deviations are given.

6. The CDC issued a brief ( Found Here) titled "Nonalcoholic Beverage Consumption Among Adults: United States, 2015-2018", published in September 2020. You claim that the distribution is no longer valid and decide to conduct a survey.

a. The hypothesis test needed is called the Select an answer: X^2 GOF test, Dependent t-test, 2-Samp z-test, 1-Pop z-test, z-test, X^2 Independence Test, t-test

b. because Select an answer: the sample standard deviation is given, the population standard deviation is given, testing to see if 2 variables are related or not, 2 samples with their population standard deviations are given, counts of people are given with no standard deviations, testing to see if the known distribution is still valid, 2 samples are a 'before and after' situation.

7.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Recent Developments Of Mathematical Fluid Mechanics

Authors: Herbert Amann, Yoshikazu Giga, Hideo Kozono, Hisashi Okamoto, Masao Yamazaki

1st Edition

3034809395, 9783034809399

More Books

Students also viewed these Mathematics questions

Question

Explain how to find critical values in a chi-square distribution.

Answered: 1 week ago