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- Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarized in the GFDT below. Lengths (mm) Frequency 160 - 169 1 170 - 179 16 180 - 189 71 190 - 199 108 200 - 209 83 210 - 219 18 220 - 229 3 What is the class midpoint for the sixth class?class midpoint =What is the y-intercept of the prediction line?X zy Section 5.4 - QNT/275T: Statistics X /chapter/5/section/4 ision Making home > tween two population means ypothesis test for the difference between two population means. Jump to level 1 The mean voltage and standard deviation of 12 batteries from each manufacturer were measured. The results are summarized in the following table. Sample mean Manufacturer voltage (millivolts) CHA B Check + 106 101 What is the test statistic? Ex: 0.123 Next What type of hypothesis test should be performed? Select Select Left-tailed z-test Paired t-test What is the number of degrees of freedom? Ex: 25 Two-tailed z-test Unpaired t-test Population standard deviation(millivolts) 3 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the two manufacturers is different at the a = 0.05 significance level? [Select v 2 5
- The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth‑grade students. Scores on the test range from 00 to 500.500. Demonstrating the ability to use the mean to solve a problem is an example of the skills and knowledge associated with performance at the Basic level. An example of the knowledge and skills associated with the Proficient level is being able to read and interpret a stem‑and‑leaf plot. In 2019, 147,400147,400 eighth‑graders were in the NAEP sample for the mathematics test. The mean mathematics score was ?⎯⎯⎯=282.x¯=282. We want to estimate the mean score ?μ in the population of all eighth‑graders. Consider the NAEP sample as an SRS from a Normal population with standard deviation ?=40. According to the 9595 part of the 68-95-99.768-95-99.7 rule, 95%95% of all values of ?⎯⎯⎯x¯ fall within how many points on either side of the unknown mean ??μ? Give your answer to four decimal places.Show the five-number summary for the following data: 6, 15, 18, 9, 7, 12, 17, 11, 7. minimumfirst quartilemedianthird quartilemaximum Show the boxplot for the data. The box-and-whisker plot has a horizontal axis numbered from 3 to 18. The box-and-whisker is also horizontal. The left whisker is approximately 3, the left edge of the box is approximately 4, the line inside the box is approximately 11, the right edge of the box is approximately 16, and the right whisker is approximately 18. The box-and-whisker plot has a horizontal axis numbered from 6 to 23. The box-and-whisker is also horizontal. The left whisker is approximately 6, the left edge of the box is approximately 7, the line inside the box is approximately 16, the right edge of the box is approximately 21, and the right whisker is approximately 23. The box-and-whisker plot has a horizontal axis numbered from 6 to 18. The box-and-whisker is also horizontal. The left whisker is approximately 6, the left edge of the box is…Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarized in the GFDT below. Lengths (mm) Frequency 160 - 162 1 163 - 165 16 166 - 168 71 169 - 171 108 172 - 174 83 175 - 177 18 178 - 180 3 What is the class midpoint for the sixth class?class midpoint =
- Q1: Complete the following frequency table: Production In liters Number Farmer ? center Category ? Repetition Cumulative ?. ? 149 -100 5 199 -150 5 249 -200 8 299 -250 4 349 -300 2 Total 24 Calculate the mean, median and mode, then calculate the coefficient of variation. Examples data by the recurring curve method. Question2: The question measures the mental skills that the student acquired (c1) If you know that it is the lengths of a group of students, it follows a normal distribution with an arithmetic mean of 170 cm and a deflection 5 cm standard, one of the guys was randomly selected (X) Find from the following using the Z tables: P (X< 174) P (X≥ 185) P (179 ≤ X ≤ 182) Q3: This question measures the applied skills of the student (b1) Explain the relationship between the two variables. Find the equation of the yield…I need help calculating the population size (n), sum, mean, median, mode, range, std. deviation and coef. of variation.NGAGE MINDTAP tions 1-1a YouTube ssignment: Applications 1-1a uestions ge6fa02h.AP1-1.02 ✪ O O O O O Maps nevoindex.html?deploymentid=60127023425211775496485913&elSBN=9780... A a To Dashboard - HMH Ed Hide Feedback ** . a. What is the mean price? Round your answer to the nearest cent. 679.63 b. What is the median price? 689,5 c. What is the mode price? 699 55 a Q Search this course Note: Please make sure to properly format your answers. All dollar figures in the answers need to include the dollar sign and any amount over 1,000 should include the comma ($2,354.67). All percentage values in the answers need to include a percentage sign (%). For all items without specific rounding instructions, round your answers to two decimal places, show both decimal places (5.06). Save X Assignment Score: 0.00% Kate is a professional musician. She wants to make an essential purchase of an upgraded used bass guitar for her work. She found the following prices for the same make and model bass guitar…
- Use the first 30 data values. Test, at the 5 percent level of significance, the hypothesis that men's and women's mean (a) Cholesterol are equal. (b) Blood pressure are equal. Student Cholesterol Pressure Gender 1 213 127 2 174 116 M 3 193 110 F 196 110 220 130 183 99 M. 194 112 8 200 102 192 121 M 10 200 125 F 11 200 125 M 12 199 133 13 178 130 M 14 183 136 M 15 188 112 16 193 113 17 187 112 F 18 181 129 M 19 193 137 M 20 205 113 M 21 196 113 M 22 211 110 23 202 97 M 24 213 103 25 216 95 26 206 107 M 27 195 102 28 191 111 M 29 194 114 184 104 30Identify the maximum value, minimum value, median (Q2), first quartile (Q1), third quartile (Q3), and interquartile range (IQR) from the given boxplot. See Example 4. + + + 3 4 5 678 9 10 11 12 13 14 15 16 17 18 19 20 + Median (Q2): First Quartile Third Quartile (Q3): | Interquartile Range (IOR):Right arm 102 101 94 79 79 Left arm 175 169 182 146 144 If the sample data were to result in the scatterplot shown here, what is the value of the linear correlation coefficient r?