Thirty- two different video games showing drug were used observed. The duration times of drug use ( in seconds ) were recorded. When using this sample for a t test of the claim that the population mean is greater than 86 sec, what does df denote , and what is its value ? the value of df is ___ ( type an integer or a decimal . Do not round )

Q: 6.8 Obtain a test for Ho: B1 = c versL

A:

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A: Given, μ = 7x¯= 6.4σ = 1.6n = 30α = 0.01

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Q: Find the 95% confidence interval.

A: here from given information   pcs^ = 0.85 pcg^ = 0.75 ncs = 100   , ncg = 160

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Q: No. of Hours Playing Reduction Of Academic Online Games (x) Performance (y) 3 4 6. 6. 7 8. 8 10 8 12…

A: The r=0.9466, a Very strong positive correlation. Hence, option c is the correct answer.

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A: Given that -

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A: *Answer:

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Q: 2. Consider the following conditions. x, = 34.81 %3D x, = 36.78 n, = 12 n, = 15 si = 14 s = 10 %3D…

A: