Do you have a great deal of confidence in the advice given to you by your medical doctor? About 45% of all adult Americans claim they do have a great deal of confidence in their M.D.s. Suppose a random sample of n = 39 adults in a health insurance program are asked about their confidence in the medical advice their doctors give. (a) Is the normal approximation to the proportion p̂ = r/n valid?(Round your answers to two decimal places.) It ---Select--- is is not possible to use the normal approximation to the binomial distribution because n · p = , which is ? > ≤ 5, and n · q = , which is ? > ≤ 5. (b) Find the values of μp̂ and σp̂. (Round your answer for σp̂ to three decimal places.) μp̂ = σp̂ =

Do you have a great deal of confidence in the advice given to you by your medical doctor? About 45% of all adult Americans claim they do have a great deal of confidence in their M.D.s. Suppose a random sample of n = 39 adults in a health insurance program are asked about their confidence in the medical advice their doctors give. (a) Is the normal approximation to the proportion p̂ = r/n valid?(Round your answers to two decimal places.) It ---Select--- is is not possible to use the normal approximation to the binomial distribution because n · p = , which is ? > ≤ 5, and n · q = , which is ? > ≤ 5. (b) Find the values of μp̂ and σp̂. (Round your answer for σp̂ to three decimal places.) μp̂ = σp̂ =

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

See similar textbooks

Similar questions

Do you have a great deal of confidence in the advice given to you by your medical doctor? About 45% of all adult Americans claim they do have a great deal of confidence in their M.D.s. Suppose a random sample of n = 31 adults in a health insurance program are asked about their confidence in the medical advice their doctors give. (a) Is the normal approximation to the proportion p̂ = r/n valid? (Round your answers to two decimal places.) It (is or is not) possible to use the normal approximation to the binomial distribution because n · p = (answer), which is (< or >) 5, and n · q =, which is (> or <) 5. (b) Find the values of μp̂ and σp̂. (Round your answer for σp̂ to three decimal places.) μp̂ = σp̂ =
Do you have a great deal of confidence in the advice given to you by your medical doctor? About 45% of all adult Americans claim they do have a great deal of confidence in their M.D.s. Suppose a random sample of n = 45 adults in a health insurance program are asked about their confidence in the medical advice their doctors give (a) Is the normal approximation to the proportion p̂ = r/n valid?(Round your answers to two decimal places.) It 1 ---Select (is or is not)---- possible to use the normal approximation to the binomial distribution because n · p = ? , which is ? 5, and n · q = ?, which is ? 5. (?'s are greater than, less than etc) (b) Find the values of μp̂ and σp̂. (Round your answer for σp̂ to three decimal places.) μp̂ = σp̂ =
Answer the following with solution: 1. If z is greater than -0.5, what is its area in percent? 2. Find the area under the normal curve: -2< Z < 1 (in decimal). 3. Find the area under the normal curve left of z = 1.5 (in percent)
What is E(x̄)? What is E(x̄) equal to?Suppose you take a random sample and find the sample mean, x̄. Based on the previous problem, can you say that x̄ is equal to the mean of the entire population µ?
For a sample with a standard deviation of s = 8, a score of X = 65 corresponds to z =1.50. What is the sample mean?
For a population with a mean of u=45, a score of X=54 corresponds to z=1.50. What is the population standard deviation?
For a population with a standard deviation of s = 14, a score of X 5=24 corresponds to z = -0.50. What is the population mean?
For a sample with a standard deviation of s=4, a score of X=35 corresponds to Z= -1.25. what is the sample mean?
Suppose the relationship between Y and X is given by: Y = 10.11 + 10.11*X + error By how much does the expected value of Y change if X increases by 1.87 units? (Round your answer to two decimal places: ex: 123.45)
For a sample with a standard deviation of s = 8, a score of X = 42 corresponds to z = –0.25 what is the mean
An investigator wants to estimate caffeine consumption in high school students. How many students would be required to estimate the proportion of students who consume coffee? Suppose we want the estimate to be within 5% of the true proportion with 95% confidence. Alpha = ________ Z= ________ p= ________ E = ________ n= ________
The distribution of the weights of a sample of 1,375 cargo containers is symmetric and bell-shaped. According to the Empirical Rule, what percent of the weights will lie between X¯¯¯−2s�¯−2� and X¯¯¯+2s�¯⁢+2� ? (Round your answer to 2 decimal places.) According to the Empirical Rule, what percent of the weights will lie between X¯¯¯�¯ and X¯¯¯+ 3s�¯+ 3� ? (Round your answer to 2 decimal places.)