A random sample of 25 values gave... A: (7) (a) Describe the sampling distribution of x (b) What is P (x > 72.95) ? O D. Approximately normal because ns0.05N and np(1 - p) < 10. (d) What is P (87.7 86.5) 9 (a) Describe the sampling distribution of p. OA Approximately normal, HA = 0.76 and 6- = 0.0002 OB Approximately normal. is obtained from a population whose size is. vars: No Pool (and df calculated with Formula 9-1) 3) the shape of the distribution is unknown. Suppose a simple random sample of size n = 200 is obtained from a population whose size is N = 15,000 and whose population proportion with a specified characteristic is p = 0.8 . The value of test statistic is, (1) statistics. Suppose a simple random sample size n = 200 is obtained from a population whose size is N = 20,000 and whose population proportion with a specified characteristic is p=0.4. I generally can figure this out if given the formulas but I don't know the formulas in this instance. X*X (a) Describe the sampling distribution of ._____(b) What is the probability of obtaining x = 136 or more individuals with the Describe the sampling distribution of p. Choose the phrase that best describes the shape of the sampling distribution below. a) the distribution is skewed right. Y Sketch the sampling distribution of $\bar{x}$ when simple random samples of size 60 are used. Suppose a simple random sample of size n 50 is obtained from a population whose size is N20,000 and whose population proportion with a specified characteristic is p 0.4 (a) Describe the sampling distribution of p Choose the phrase that best describes the shape of the sampling distribution below OA. Complete parts (a) through (c) below. d) the distribution is uniform. 1. a) 0.6826 (a) Describe the sampling distribution of x. Suppose a simple random sample size of 100 is selected and x is used to estimate the population mean. An example of a simple random sample would be the names of 25 employees being chosen out of a hat from a company of 250 employees. Number of categories (k) = 10 The sampling distribution of x overbar has mean mu Subscript x overbar equals _____ and standard deviation sigma Subscript x overbar equals _____. Assuming the normal model can be used, describe the sampling distribution x. b. Suppose a simple random sample of size n=42 is obtained from a population with μ=66 and σ=15. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities regarding the sample mean? (b)… A polling organization is about to take a simple random sample of voters and will use p hat, the sample proportion, to estimate p. Suppose that the polling organization takes a simple random sample of 500 voters. Suppose a simple random sample of size n = 150 is obtained from a population whose size is N = 30,000 and whose population proportion with a specified characteristic is p = 0.8. Not normal because n LE 0.05N and np(1 - p) < 10. 22... A: From given data, 285 p=0.4. ... *Response times vary by subject and question complexity. 49 Suppose a simple random sample of size n = 10 is obtained from a population withµ= 66 and a= 14. Complete parts (a) through (c) below. (b) Assuming the normal model can be used, determine P{x < 69.4). Suppose a simple random sample of size n = 1000 is obtained from a population whose size is N = 1,500,000 and whose population proportion with a specified characteristic is p = 0.76. This preview shows page 2 out of 2 pages.. 1. P(ps0.36) = (Round to four decimal places as needed. c) the distribution is skewed left . 17 (b) Assuming the normal model can be used, describe the sampling distribution overbar x. (b) Assuming the normal model can be used, determine P(x<70.4). 1)Suppose a simple random sample of size n = 38 is obtained from a population of (I Believe it is called "Mu" its like a u) = 66 and (lower case sigma) = 19 a) Assuming the normal model can be used, describe the sampling distribution x-bar. Suppose a simple random sample of size 100 is - Answered by a verified Math Tutor or Teacher We use cookies to give you the best possible experience on our website.
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