(c)
Suppose
(For each answer, enter a number. Use 2 decimal places.)
n·p =
n·q =
Can we approximate p̂ by a normal distribution? Why? (Fill
in the blank. There are four answer blanks. A blank is represented
by _____.)
_____, p̂ _____ be approximated by a normal random
variable because _____ _____.
first blank
second blank
can
cannot
third blank
n·p does not exceed
n·p and n·q do not exceed
both n·p and n·q exceed
n·q exceeds
n·p exceeds
n·q does not exceed
fourth blank (Enter an exact number.)
What are the values of μp̂ and
σp̂? (For each answer, enter a number.
Use 3 decimal places.)
μp̂ = mu sub p hat =
σp̂ = sigma sub p hat =
(c) Suppose n = 46 and p = 0.18. (For each answer, enter a number. Use...
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a) Suppose n = 41 and p = 0.39. (For each answer, enter a number. Use 2 decimal places.) n·p = n·q = Can we approximate p̂ by a normal distribution? Why? (Fill in the blank. There are four answer blanks. A blank is represented by _____.) _____, p̂ _____ be approximated by a normal random variable because _____...
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a) Suppose n = 44 and p = 0.24. (For each answer, enter a number. Use 2 decimal places.) n·p = n·q = Can we approximate p̂ by a normal distribution? Why? (Fill in the blank. There are four answer blanks. A blank is represented by _____.) _____, p̂ _____ be approximated by a normal random variable because _____...
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a)Suppose n = 43 and p = 0.20. (For each answer, enter a number. Use 2 decimal places.) n·p = n·q = Can we approximate p̂ by a normal distribution? Why? (Fill in the blank. There are four answer blanks. A blank is represented by _____.) _____, p̂ _____ be approximated by a normal random variable because _____ _____....
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a) Suppose n = 39 and p = 0.18. Can we approximate p̂ by a normal distribution? Why? (Use 2 decimal places.) np = nq = , p̂ be approximated by a normal random variable because . What are the values of μp̂ and σp̂? (Use 3 decimal places.) μp̂ = σp̂ = (b) Suppose n = 25 and...
Suppose x has a distribution with a mean of 40 and a standard deviation of 20. Random samples of size n = 64 are drawn. (a) Describe the x bar distribution. x bar has a normal distribution. x bar has a geometric distribution. x bar has an approximately normal distribution. x bar has a Poisson distribution. x bar has an unknown distribution. x bar has a binomial distribution. Compute the mean and standard deviation of the distribution. (For each answer,...
normal dist For a standard normal distribution, find: P(z<c) = 0.2424 Find c rounded to two decimal places. Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172 Enter DNE for Does Not Exist, oo for Infinity
Use the spinner below. P(multiple of 2) = Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4) Enter DNE for Does Not Exist, oo for Infinity
Here is a simple probability model for multiple-choice tests. Suppose that each student has probability p of correctly answering a question chosen at random from a universe of possible questions. (A strong student has a higher p than a weak student.) The correctness of answers to different questions are independent. Jodi is a good student for whom p = 0.83. (a) Use the Normal approximation to find the probability that Jodi scores 76% or lower on a 100-question test. (Round...
The following observations are are on stopping distance (n) of a particular truck at 20 mph under specified experimental conditions. 32.1 30.9 314 30.4 31.0 31.9 opping distanoe is 30. A normal probability plot validates the assumption that stopping distance is normally distributed average stopping distance exceeds this maximum value? Test the appropriate hypotheses using a-.01 State the apprepriate hypotheses Оно: μ-30 He' μ * 30 Me: μ + 30 30 Ho: 30 calculate the test statistic and ermine the...
Please do all 3 problems 1. Find C(n, x)pxqn − xfor the given values of n, x, and p. (Round your answer to four decimal places.) n = 6, x = 5, p = 0.7 2.Let X be the number of successes in six independent trials of a binomial experiment in which the probability of success is p = 2/5. Find the following probabilities. (Round your answers to four decimal places.) (a) P(X = 5) (b) P(2 ≤ X ≤...