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

Q: 3 -4- -0- 4. 2.

A:

Q: 3y² - 2y-1 (-)-5y²- 2y +6

A:

Q: 2 3 3 4 6 8

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…

Q: 2) 36³x=¹

A:

Q: Expand -5x (2 - 3y)

A: Expand -5x (2 - 3y)

Q: 5 1 1 + 2r dr

A:

Q: 22n+1 3n+1 2.

A:

Q: FIND S + 4 (s² – 8S + 6) -

A:

Q: expand (a-b)7

A: The solution is given in the next step.

Q: 1+7/7 + 8

A: Answar would be 10

Q: Expand (x + y) 8.

A: Given: The expression x+y8.

Q: 4root2*4root2

A:

Q: 7,20

A:

Q: +–3m+–9m+4+5+–10m

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

Q: 5у 10y

A: Given,    5y/10y    Cancelling y from both numerator and denominator to get,    5/10   Now, 5/10 can…

Q: 4. Expand and simplify (2x + 3)*

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

Q: 4(5+6)=

A: Given: 4(5+6)=

Q: d. 1 3a+18 = 1 - 8 a+6

A:

Q: (n + 4)3 =

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

Q: limx→- f(x) limo+ f(x) limx→ = = =

A:

Q: (2) 4 2. 2. 2/3

A:

Q: 2) Expand the following a) Csa2-2b)

A: I have to exapand (5a^2-2b)

Q: 18(9+7)+3

A: 18(9+7)+3

Q: find: (m+I) m!

A:

Q: expand (x+y)6

A:

Q: 8y3 + 216

A:

Q: limx→2 f(x) = lim, ¹x→−1+ f(x) =

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

Q: ydy (1+ у)*

A: We have to find the integral.

Q: Find A.

A: Given

Q: (2 + V-9 )3

A:

Q: 3(m – 5) + m

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

Q: 8(14-9)+5 32+6

A: The given expression is