The 2013 general Social Survey asked a large number of people how much time they spent watching TVeach day. The mean number of hours was 3.7 with a standard deviation of 2.5. Assume that in a sample of57 teenagers, the sample standard deviation of daily TV time is 2.2 hours, and that the population of TVwatching times is normally distributed. Under 1% significance level can you conclude that the populationstandard deviation of TV watching times for teenagers is different from 2.5?Procedure: One variance x² Hypothesis Test vAssumptions: (select everything that applies)✔Population standard deviation is unknown✔Simple random sampleNormal populationSample size is greater than 300°The number of positive and negative responses are both greater than 10Population standard deviation is knownStep 1. Hypotheses Set-Up:Ho: Select an answerHa: Select an answer ✓ ? VStep 2. The significance level a =OT%where? is theSelect an answer?"Part 2 of 5and the units areand the test is Select an answer ✓

It is given that the population standard deviation of TV watching times for teenagers is different…

Answered: Step 1. Hypotheses Set-Up: Ho: Select…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Need help with parts C & D The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 191 Americans is administered the acupuncturists treatment and 25 report experiencing migraines.a. State Hypotheses to the scenario using the correct symbols. b. What is the sample proportion? (Round to 2 decimal places) ˆpp^= c. Suppose the P-value is calculated to be 0.0318What would your decision be for this test using α=α= 0.025? fail to reject the null accept the null reject the null d. Write a conclusion in terms of the acupuncturist's claim. Use the model provided by the instructor. Assume no errors were made.
Please read carefully and answer correctly as you can get a better understanding of these questions. Only answer if you can answer answer these 10 questions shown in the picture. This question deals with Sets and set operations with Venn Diagram. For problems 1-10 refer to these sets U= {a, b, c, d, e, f} A= {a, c, e, f} B={c, d, e} C={e, f}
help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working
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If P(A)=0.5, P(B)=0.3, and A and B are independent, find P(A and B). Question content area bottom Part 1 P(A and B)=?
hypothesis testing is the topic
question is pictured
_____ ___ _ examines whether a measuring device (scale) covers the full range of meanings or forms that are included in a variable to measure. a.Face validity b.Construct validity c.Predict validity d.Content validity
ind the number of successes x suggested by the given statement: From a CNN/USA Today/Gallup poll: Among 1299 survey subjects, 13.7 % say that the opinion of a celebrity would influence their own opinion. x = nothing (round off to a whole number)

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Step 1. Hypotheses Set-Up: Ho: Select an answer ✓ = Ha: Select an answer ? V Step 2. The significance level a = % where? is the Select an answer ? " Part 2 of 5 and the units are and the test is Select an answer