8) Suppose that we know that for a sample, the population standard deviation o=8.19.What would we expect to be true about the related sample standard deviation s?a) s will be higher than 8.19b) s will be smaller than 8.19d) We cannot tell og ni)c) s will be exactly 8.199) Which of the following is NOT a potential pitfall of a poorly designed survey?a) Voluntary responsec) Truthfulness of response10) Suppose that a data set contains a low outlier. The mean for the full data set was 74with a median value of 85. Eliminating the outlier gave a mean of 81 with a median value of90. Which of the following statements explains this phenomena?a)The mean changes more than themedian because the mean is resistantto outliers.b) Hidden biasd) Ability to show causationc) The median changes more than themedian because the mean is resistantto outliers.b) The mean changes more than themedian because the median is resistantto outliers.d) The median changes more than themedian because the median is resistantto outliers.mibom nesm) yansbast laxtaso to awesom wol odit baitof having that much experience,these football players,EIS HAS T81 Ter SSS EES 201 EIS TIS eer 20s 581 SAS ERE OOSPL)0.080.19

It is given that Population standard deviation, σ = 8.19Note: According to Bartleby expert…

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MATLAB: An Introduction with Applications

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Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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A random sample of 37 MBAs working in New York revealed that their mean annual salary was $132,000. Suppose that the population standard deviation o is $31,000 but that the population mean μ is unknown. What is the point estimate (i.e. the "best guess") of the mean salary μ of all MBAs in this city? O $99,000 O $132,000 O $116,000 O $31,000
6. 6. 4 9 For the sample data in the table above, by how much does the data value 4 deviate from the mean? Round to one decimal if needed and enter a positive value. Submit Question MacBook Pro G Search or type URL 6O 7 6
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9.13 Given a sample size of 36, how large does the population standard deviation have to be in order for the standard error to be A. 1? B. 2? C. 5? D. 100?
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13) The following table presents the heights (in inches) of a sample of college basketball players. Height (in.) 68 - 71 72-75 76-79 80-83 84 - 87 Course Statistics Frequency Physics Sociology Literature Tennis a) Considering the data to be a population, approximate the standard deviation of the heights. Hint: Consider the rule of thumb, that is, range = 19 and s=4.75 148850 b) Approximate the mean of the heights. 14) A student received the following grades last semester. Find the student's semester grade point average. H 16 4532 70 1 60 Credits Grade/Points A / 4.0 F / 0.0 B / 3.0 B / 3.0 D / 1.0 Use the boxplot to identify the maximum value, minimum value, median, first quartile, third quartile, and interquartile range. 15) H 7 8 9 10 11 12 13 14 none min = 7 max=12 med=q Q1=8 Q3=11 IQR=Q3-21=11-8=3 16) In a poll of 522 university students, 219 said that they were opposed to legalizing marijuana. What is th probability that a surveyed student opposes legalization of marijuana?…
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It is reported that a survey had a standard error of the mean of 20, and it is assumed that the population standard deviation is 500. Using this information, determine the size of the sample that was used in this survey. a) 300 b) 200 c) 400 O d) 500 () e) None of the answers are correct
6. For a population with a standard deviation of o = 20, how large a sample is necessary to have a standard error that is: a. less than or equal to 5 points? b. less than or equal to 2 points? c. less than or equal to i pint?
The lengths of pregnancies in a small rural village are normally distributed with a mean of 269 days and a standard deviation of 16 days. a) In what range would you expect to find the middle 68% of most pregnancies? Between and b) If you were to draw samples of size 38 from this population, in what range would you expect to find the middle 68% of most averages for the lengths of pregnancies in the sample? Between and Enter your answers as numbers. Your answers should be accurate to one decimal places. Submit Question ロI & #3 2$ 6 7 8. 2 3 4 y e d f h づ

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8.19. 8) Suppose that we know that for a sample, the population standard deviation o = What would we expect to be true about the related sample standard deviation s? a) s will be higher than 8.19 b) s will be smaller than 8.19 c) s will be exactly 8.19 d) We cannot tell