16% 12% 8% 4% 2 6 LI 1 0 10 14 Histogram of Final Exam Scores 100 20 30 Scores About what percent of the class scored less than a 20? 40 50 60 70 80 90 100 по

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A: The following data has been given: 18,16,16,16,14,18,16,18,14,19 The sample size is n=10.

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Q: c. The 90th percentile for novels is (Round to the nearest word) d. The middle 80% of romance novels…

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Q: Find the range: 7, 16, 1, 15, 11

A: The minimum value is 1 and the maximum value is 16.

Q: A random sample of 10 observations is selected from the first normal population and 8 from the…

A: We have given that Sample size (n1 ) = 10 Sample size (n2 ) = 8 Significance level (α) = 0.01

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A: Empirical rule: According to the empirical rule, approximately 68% of the data fall within one…

Q: In performing the following test, a statistician found z = 1.75. Q5. Find the p-value of the test…

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A: The hypothesis test are used when the population size is larger. Sample has been taken to compare…

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A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: ion l

A: X Y 0 -1.5 1 2.3 2 9 3 23.2 4 42.3 The equation is y=a0+a1x+a2x2 and the normal…

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Q: 2. For the following information on a data set: Measurement Class .00-.75 75-1.50 1.50-2.25…

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Q: The interval is a enter your response here​% confidence interval. ​(Round to one decimal place as​…

A: Given that  Sample size n =1100 Sample proportion p^=68%=0.68 Margin of error =E = ±4%=±0.04

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Q: 4.21. The following sample data was obtained. What is the expected ±3 sigma spread of the process…

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Q: In a test of a gender-selection technique, results consisted of 226 baby girls and 13 baby boys.…

A: The answer is attached below,

Q: Given the data set: 194,219,93,299,191, calculate the deviation score associated with 93. Enter your…

A: The mean is calculated as follows: μ=∑xN  =194+219+93+299+1915  =199.2 The mean is 199.2.

Q: 51 69 73 74 75 82 89 93 98 100 and the range. 68 69

A: Given Range =Highest value - lowest value

Q: ssume that human body temperatures are normally distributed with a mean of 98.19°F and a standard…

A: Given that Mean=98.19∘F Standard deviation =0.62°F

Q: A random sample of size 21 was taken from a normal population. The sample average was 9.87 and the…

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Q: The best point estimator for the population mean is the sample mean. True False

A: TRUE

Q: Below is a contingency table outlining the number of surveyed adults who use Snapchat. Use Snapchat…

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Q: is step 4 271/256 = 1.05859375?

A: Given question is correctly solved  In Step 4 we have to find Standard Deviation SD=E(x2)-E(x)2…

Q: viatio

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Q: me until the person pr is to determine wheth the experiment. To e persons participated in as…

A: The non-parametric Friedman hypothesis test is designed to test differences between groups (groups…