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Consider the hypothesis test given by H0:μ=650Ha:μ<650 Assume the population is normally distributed. In a random sample of 25 subjects, the sample mean is found to be ´x=640, and the sample standard deviation is s=30. (a) (1 pt) Is this test for population proportion, mean or standard deviation? What distributionshould you apply for the critical value? The t distribution should be utilized since the population standard deviation is unknown. (b) (1 pt) Is the test a right-tailed, left-tailed or two-tailed test? The test would be left-tailed. (c) (2 pts) Find the test statistic. (Show work and round the answer to two decimal places)T = (640-650)/ (30/5) = -10/6 = -5/3 = -1.6667
asked
Mar 13, 2021
Mathematics
college
1
answer
0
votes
226k
views
3. What are 3 ways to improve your cardiovascular system?
asked
Feb 25, 2021
Health
high-school
1
answer
2
votes
33.9k
views
KLMN and PQRS are similar trapezoids. which side of PQRS corresponds to LM
asked
Oct 20, 2020
Mathematics
middle-school
2
answers
3
votes
108k
views
I need help please . 2nd box is multiply choose.
asked
Jul 5, 2020
Mathematics
middle-school
1
answer
4
votes
95.4k
views
An ESP’s efficiency is increased from 96% to 98% total mass removal. What is the percent change in mass of emissions?
asked
Feb 7, 2020
Geography
college
1
answer
1
vote
80.3k
views
Hector buys a shirt and a tie. The shirt costs $34, which is $18 more than the cost of the tie. Olivia and Max each write an equation to find the cost of the tie t. Is one equation, both equations, or
asked
Jan 28, 2020
Mathematics
middle-school
1
answer
5
votes
71.7k
views
Tiffany loves babysitting her cousin Hayden, who she thinks is the most entertaining one year old in the world. She is watching him one afternoon, when she decides to watch TV. Unfortunately, she has trouble
asked
Dec 24, 2019
Chemistry
middle-school
1
answer
4
votes
107k
views
What is the equation of the line? y = -3x y=(-1/3)x y=(1/3)x y=3x Please Hurray!!
asked
Aug 21, 2019
Mathematics
middle-school
2
answers
3
votes
156k
views
In a raisin in the sun what does the concept of home most likely mean to ruth?
asked
Feb 24, 2019
English
high-school
2
answers
4
votes
18.6k
views
Comment est-ce qu'elle va faire du shopping? Elle va en _______ Qui va au marché avec lui? Sa __________ va au marché
asked
Jan 4, 2019
French
high-school
2
answers
0
votes
15.5k
views
Which is equivalent to i153?
asked
Oct 12, 2018
Mathematics
high-school
2
answers
3
votes
46.8k
views
What are the next letters BE GL LO QT
asked
Aug 20, 2018
Mathematics
middle-school
1
answer
3
votes
162k
views
By the 1880s most states had outlawed child labor. a. True b. False
asked
Aug 9, 2018
History
high-school
1
answer
5
votes
203k
views
Of the employees who work at stalling printing 90% attened the safety procedures meeting. If 63 employees attended the meeting how mant employees work at stalling printing
asked
Feb 1, 2018
Mathematics
high-school
1
answer
2
votes
60.8k
views
Which theme is present in both Of Plymouth Plantation and A Key into the Language of America? A. sea voyages B. the importance of religion C Puritan superiority DNative American customs
asked
Nov 16, 2017
English
high-school
2
answers
5
votes
80.0k
views
If (−3.5, y) is a solution to the equation 2x − 5y = 10, what is the value of y? a) -3.4 b) 13.75 c) -0.6 d) -3.75
asked
Sep 13, 2016
Mathematics
high-school
1
answer
4
votes
18.1k
views
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