n=800 x=632 Example: The National Association of Music Merchants surveyed 800 parents of children 5-18, and 632 of them said that music education has a positive effect on academic performance. Assuming these parents to be a random sample, we would like to construct a 95% confidence interval for the proportion of parents who believe that music education has a positive effect on academic performance. One example by hand for understanding - you will use your calculator when finding confidence intervals (see next slide) Check the assumptions and conditions. ✓ We have a simple random sample. The sample size of 800 is less than 10% of the population of all parents. ✓ It's safe to assume that the individuals within the sample are independent. ✓ The sample contains 632 successes and 168 failures 800-632

Q: 2x 940 30 120

A: We know that sum of interior angles of a pentagon is 540°

Q: 20 18

A:

Q: 9th play. answer should be 0.0212

A: We have given that P(win) = 1/38 P(loose) = 1- 1/38 = 37/38

Q: 10 Show that the equation 2x+e" - 2 =0 has a root between x 0 and x= 1. Using the Newton- Raphson…

A:

Q: had 0.85 it says its wrong

A:

Q: shouldnt e=2.71?

A: Yes, Value of e = 2.718

Q: What is the value of (-10)?

A: Consider  (-10)

Q: え01 20°

A: Given that ∆PQR is a Right angle triangle . Given that <RPQ = 20° and PQ = 8 m  We have to find…

Q: I would like to ask for the 11.16 answer as well. Thank you.

A:

Q: se=2.422091 interpret what the number tells you.

A: we  have a number 2.422091  which is terminating after decimal point  that is this number is a…

Q: where did you get 2.306?

A: We have to find a 95% confidence interval for slope and margin of error.Confidence level (c) = 95% =…

Q: why is the p value .1439

A: We have given that n=sample size=50, sample mean x̄ =27.01 , SE=0.68  Level of significance ɑ=0.05…

Q: What is the opposite and absolute value of negative 4.06

A:

Q: Is the answer 0.36 or 0.44??

A:

Q: i dont understand how you got the 0.58

A: The mean is 8 and the variance is 16.

Q: 36.4 E 49 28

A:

Q: Vhat is the value of n that 45.47 = 415

A: the question is taken from the alzebra in which we have to find the value of the n so we write the…

Q: What is the quotient of 47.936 and 0.56

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Q: How did we get the 0.1828 and 0.2056?

A: Sample size (n)=2400 Sue select 81 sample and Javier select 64 The formula for 100(1-α)% confidence…

Q: -V484:

A:

Q: Find the missing side X

A: Given Triangle is   what is x?

Q: how did you get the 2.5 from the 6.25

A: Solution: Given : k2= 10.16

Q: +5 %D

A:

Q: Find x

A: our objective is to find x.

Q: hi the apr wrong that why you cant find 42.43

A:

Q: 0.0000 was incorrect. is there another way to get the answer?

A:

Q: how did you get 10.02  if you do 2.41*1.8+5.7=10.038

A: As we know z-value formula  z=x-μσ now we have : z=2.4μ=5.7σ=1.8

Q: Is 7.28 Than 7

A: To determine whether 7.28 <, or > than 7.

Q: x¹ * x=80 O 5.60 10 1.87 1.73

A:

Q: using h as 0.05 it says 0.3487 is incorrect, help

A: We have to find  using improved Euler's method.

Q: P(-1.15 < Z < 1.56) (Round to the hundredths)

A: Using Excel formula, "=NORM.S.DIST(1.56,TRUE)", the value of PZ≤1.56 is obtained as 0.94. Using…

Q: Where does the 0.025 come from?

A: The given confidence level is 95%.

Q: find the devivetive %3D x+6

A: Given that      f(x) = [x/√(x+6)]3 Here we have to find the derivative of f(x) .

Q: Using the results from the last question, if 5000 rods are manufactured in a day, how many should…

A: Using the results from the last question, if 5000 rods are manufactured in a day, how many should…

Q: Need help with the 4.33

A: In general, total probability is always equal to 1.

Q: which is bigger ? 0.5 or 0.393?

A:

Q: 00 n = 1

A:

Q: the second answer 4.429 is wrong please check

A: The probability value can not exceed 1 i.e. a maximum value that probability can have is 1.