Mathematics, 05.08.2020 17:01 MAFA6835
7. The General Society Survey asked a sample of 1200 people how much time they spent watching TV each day. The mean number of hours was 3.0 with a standard deviation of 2.87. A sociologist claims that people watch a mean of 4 hours of TV per day. Do the data provide sufficient evidence to disprove the claim? Use α = .05 to test the hypothesis. a. What are your null and alternative hypotheses? b. What test is appropriate here? Why? c. What is your test statistic? d. What is your critical value? e. What is your final decision: do you reject the null or fail to reject the null?
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Mathematics, 21.06.2019 19:30
Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3
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Askate shop rents roller skates as shown on the table below. which graph and function models this situation?
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Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000
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7. The General Society Survey asked a sample of 1200 people how much time they spent watching TV eac...
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