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- The line of best fit through a set of data isy=46.539+4.023xy=46.539+4.023xAccording to this equation, what is the predicted value of the dependent variable when the independent variable has value 40?y = Round to 1 decimal place.Can someone please help me to solve the following question showing all workFor this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. What percentage of your campus student body is female? Let p be the proportion of women students on your campus. (a) If no preliminary study is made to estimate p, how large a sample is needed to be 99% sure that a point estimate p^ will be within a distance of 0.07 from p? (Round your answer up to the nearest whole number.) | students (b) A report indicates that approximately 60% of college students are females. Answer part (a) using this estimate for p. (Round your answer up to the nearest whole number.) students
- Suppose the relationship between Y and X is given by: Y = 50 + 3X + error By how much does the expected value of Y change if X decreases by 2 units?Answer parts d through f pleaseYou are testing that the mean speed of your cable Internet connection is 100 Megabits per second. State the null and alternative hypotheses.
- Suppose the relationship between Y and X is given by: Y = 25 - 3X + error By how much does the expected value of Y change if X decreases by 1 unit?A researcher has conducted a study to investigate the relationship between how important a person thinks appearance is and how much they spend on clothes each month, The first variable was 'self- rating of the importance of appearance' measured on a ten point scale (where 1 = not important and 10 = extremely important). The second variable was 'amount of money spent on clothes each month' measured by asking people to estimate to the nearest five pounds how much they spent in a typical month, The results are in the table below: Participant Self-rating of Amount spent on of clothes month (Maloti) s (initials) importance each appearance HP 6 80 EP 8 120 SF 100 PR 110 MS 75 JP 36 AG 15 BF 50 (a) Describe how an appropriate descriptive statistic could be used with the data in this table. (b) Provide 2 reasons to justify your choice. (c) which inferential statistical (parametric and non-parametric) test would you use to analyze the data - give 2 reasons for your choices (d) Provide 2 reasons…I have a dataset from 600 preschoolers with measures of grip strength for each individual. One individual subject had a z score of -1.5. Approximately how many preschoolers would have a grip strength lower than this individual. Show work please I don't understand
- The table below represents the values of discharge and stage. Extend the rating curve for these data, using the following equations [q= k(g-a), k= 10^, a=0]. Try to estimate the values of k and b by least square method. Determine the value of discharge at stage 7m. Stage (m) 5. 4 2 Discharge (m'/s) 50 20 10I need the answer as soon as possibleAnswer fast for I have 30 minutes left. Thank you very much.