MATLAB: An Introduction with Applications
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ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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given the following hypothesis Hsep zero:miue equal 400 and Hsep one nit equal 400
arandom sample of12 observations is selected from anormal population. the sample
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- 1) Speeds of vehicles at a certain highway location are normally distributed with a mean of 66.4 and a standard deviation of 8.8. Find the speed in mph that separates the fastest 4% from the others. Select one: a) 84.0 b) 81.8 c) 69.9 d) 70.9 e) 51.0 2) Find the number of respondents needed in a poll to determine within 1.5% margin of error, the percentage of US adults that prefer divided government. Use 90% conifdence and assume about 32% of US adults prefer divided government. Select one: a) 1693 b) 30 c) 1922 d) 3403 e) 2618arrow_forward2. A scoop is manufactured to put exactly 4.5 ounces of mashed potatoes on a plate per scoop. When you test the scoop 25 times, you notice that you scoop an average of 4.9 ounces of mashed potatoes per scoop, with a sample standard deviation of 1.2 ounces. Can we say that the amount of mashed potatoes scooped is significantly different from the claim of the scoop manufacturer? What type of hypothesis test is this? Group of answer choices 2 proportion z-test t-test 1 proportion z-test 2 sample t-testarrow_forwarda. Identify the null and alternative hypotheses Choose the correct answer belowarrow_forward
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