The morphine levels (%) of seven batches of seized heroin were determined with the following results: 15.1, 21.2, 18.5, 25.3, 19.2, 16.0, 17.8 You were asked to test whether the mean is significantly different from the true value (20.0 %) at 95% confidence. What is the tcalc value? 2.61 0.761 O 0.147 O 0.714

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A: The mean is computed below.   Aptitude score(x) Frequency(f) x*f 0 4 0 1 2 2 2 3 6 3 0 0…

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A: The solution is given in the next step.

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A: The expression is given as 1+–3m+–9m+4+5+–10m. Simplifying the given expression. 1+–3m+–9m+4+5+–10m…

A: We have to expand and simplify the following expression: . We will apply the binomial theorem to…

A: Given: 4(5+6)=

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A: Given query is to expand (n+4)3

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A: 18(9+7)+3

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A: Given graph of the function fx is   1. Find :  limx→2 fx. 2. Find :limx→-1+ fx.

A: 3(m-5)+m=0 3m-15+m=0 add both side 15 we get 2m=15

A: The given expression is