Section 8.2 Homework

i just need the answer for all the parts please, thanks

_ _ Fill in the blanks to complete the following statements. Question IlSt '6 (a) For the shape at the distribution or the sample proportion to be approximately normal, it is required that np(1 - p) 2 \"0 Suppose the proportion of a population that has a certain characteristic is 0.85. The mean of the sampling distribution of B from this population is l\" = p X . // Question 1 (This is a reading assessment question. Be certain of your answer because you only get one attempt on this question.) '2 Question 2 (a) For the shape 0' the distribution of the sample proportion to be approximately normal, it is required that np(1 p)2 C (Type an integer or a decimal) X/ Question 3 0 Question 4 0 Question 5 0 Question 6 Question list K Suppose a random sample of n = 310 teenagers 13 to 17 years of age was asked if they use social media. Of those surveyed, 232 stated that they do use social media. Find the sample proportion of teenagers 13 to 17 years of age who use social media. Question 1 The sample proportion is p =. Round to three decimal places as needed.) Question 2 Question 3 O Question 4 O Question 5 Question 6According to a study conducted by an organization, the proportion of Americans who were afraid to fly in 2006 was 0.10. A random sample of 1,400 Americans results in 154 indicating that they are afraid to fly. Explain why this is not necessarily evidence that the Question list K proportion of Americans who are afraid to fly has increased. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). Question 1 Question 2 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. This is not necessarily evidence that the proportion of Americans who are afraid to fly has increased above 0.10 because the value of np(1 - p) is less than 10. Question 3 B. This is not necessarily evidence that the proportion of Americans who are afraid to fly has increased above 0.10 because the probability of obtaining a value equal to or more extreme than the sample proportion is , which is not unusual. Round to four decimal places as needed.) O C. This is not necessarily evidence that the proportion of Americans who are afraid to fly has increased above 0.10 because the sample proportion, , is very close to 0.10. O Question 4 (Type an integer or a decimal.) O D. This is not necessarily evidence that the proportion of Americans who are afraid to fly has increased above 0.10 because the sample size n is more than 5% of the population. O Question 5 - X Standard Normal Distribution Table (page 1) O Question 6 Area - Standard Normal Distribution Z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 -3.4 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0002 -3.3 0.0005 0.0005 0.0005 0.0004 0.0004 0.0004 0.0004 0.0004 0.0004 0.0003 -32 0.0007 0.0007 0.0006 0.0006 0.000 0.0006 0.0005 0.0005 0.0005 -3.1 0.0010 0.0009 0.0009 0.0009 0.0008 0.0008 0.0008 0.0008 0.0007 0.0007 -30 0.0013 0.0013 0.0013 0.0012 0.0012 0.0011 0.0011 0.0011 0.0010 0.0010 -29 0.0019 0.0018 0.0018 0.0017 0.0016 0.0016 0.0015 0.0015 0.0014 0.0014 -28 0.0026 0.0025 0.0024 0.0023 0.0023 0.0022 0.0021 0.0021 0.0020 0.0019 -2.7 0.0035 0.0034 0.0033 0.0032 0.0031 0.0030 0.0029 0.0028 0.0027 0.0026 -26 0.0047 0 0045 0.0044 0.0043 0 0041 0.0040 0.0030 0.0038 0.0037 0 0036According to a study conducted by a statistical organization, the proportion of people who are satisfied with the way things are going in their lives is 0.88. Suppose that a random sample of 100 people is obtained. Complete parts (a) through (e) below. Question list K Question 1 (a) Suppose the random sample of 100 people is asked, "Are you satisfied with the way things are going in your life?" Is the response to this question qualitative or quantitative? Explain. A. The response is quantitative because the number of people satisfied can be counted. Question 2 B. The response is qualitative because the number of people satisfied can be counted. C. The response is qualitative because the responses can be classified based on the characteristic of being satisfied or not. O D. The response is quantitative because the responses can be classified based on the characteristic of being satisfied or not. Question 3 (b) Explain why the sample proportion, p, is a random variable. What is the source of the variability? O Question 4 A. The sample proportion p is a random variable because the value of p varies from sample to sample. The variability is due to the fact that different people feel differently regarding their satisfaction. B. The sample proportion p is a random variable because the value of p represents a random person included in the sample. The variability is due to the fact that different people feel differently regarding their satisfaction. O Question 5 C. The sample proportion p is a random variable because the value of p represents a random person included in the sample. The variability is due to the fact that people may not be responding to the question truthfully. D. The sample proportion p is a random variable because the value of p varies from sample to sample. The variability is due to the fact that people may not be responding to the question truthfully. O Question 6 (c) Describe the sampling distribution of p, the proportion of people who are satisfied with the way things are going in their life. Be sure to verify the model requirements. Since the sample size is than 5% of the population size and np(1 - p) = 2 10, the distribution of p is approximately normal with us = and on =]. (Round to three decimal places as needed.) skewed right approximately normal uniform skewed leftSuppose a simple random sample of size n = 150 is obtained from a population whose size is N = 25,000 and whose population proportion with a specified characteristic is p = 0.8. Complete parts (a) through (c) below. Question list K Question 1 (a) Describe the sampling distribution of p. Choose the phrase that best describes the shape of the sampling distribution below. Question 2 A. Approximately normal because n s 0.05N and np(1 - p) 2 10. O B. Not normal because n s 0.05N and np(1 - p)