Giving a test to a group of students, the grades and gender are summarized belowA265 16Total 13 26MaleFemaleNon-binaryB3127 18939CTotal17313078Let represent the percentage of all male students who would receive a grade of B on this test. Use a 90%confidence interval to estimate p to three decimal places.Enter your answer as a tri-linear inequality using decimals (not percents).< p <

From the provided information,Total students (n) = 78

Answered: Giving a test to a group of students,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A student organization surveyed both current students and recent graduates to obtain information on the quality of teaching at a particular university. An analysis of the responses provided the following teaching-ability rankings. Professor O Ho: Ps+0 H₂: Ps=0 O Ho: Ps ≤0 Ha: P >0 1 Ho: Ps > 0 H₂: Ps=0 2 Ho: Ps= 0 Ha: Ps * 0 3 4 5 6 7 9 10 Current Students 4 6 8 3 1 2 5 10 7 9 Recent Graduates 6 8 5 1 2 3 7 Do the rankings given by the current students agree with the rankings given by the recent graduates? Compute the rank correlation between current students and recent graduates. (Round your answer to three decimal places.) 9 Use α = 0.10 and test for a significant rank correlation. State the null and alternative hypotheses. O Ho: P₂ ZO Ha: Ps <0 10 4 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value= What is your conclusion? O Reject Ho. There is not sufficient evidence to conclude…
A survey of the number of phone calls made by a sample of 16 Verizon subscribers last week revealed the following information. 52 43 30 38 30 42 12 46 39 37 34 46 32 18 41 5 Click here for the Excel Data File Develop a stem-and-leaf chart. (Select "None" if none of the categories apply for a particular item.) What were the maximum and the minimum number of calls made?
4. The following are the scores of the male and female students in Statistics. Determine whether the male students perform better in the subject than the female students. Use 0.05 level of confidence. Males 32 25 44 26 25 37 30 25 65 27 22 15 52 X (g) Y (cm) X (g) Y (cm) 155 28 150 28 139 25 138 26 100 20 153 29 145 27 143 27 121 23 114 21 128 20 130 25 143 28 125 21 Females 5. The researcher wishes to find out the relationship between the weight and the length of fish cultured at the fishpond using bread meal as supplemental feed. Is there a significant degree of relationship between the weight and length of the fish? Use 0.05 level of confidence and answer the ff: 1. How much is the weight if it measures 30 cm? 2. How long is the fish if it weighs 120 g?
need help with questions number 3
C2. Using the information listed below, explore the educational attainment of GSS 2018 respondents. Frequencies and percentages are reported by sex of respondent. a. Calculate the IQR for both groups. What do the IQRS reveal about the degree of diversity for males and females? b. What is the limitation to applying IQR to ordinal data? Highest Educational Degree Males Females Less than high school 63 80 12.9% 12.7% High school graduate 256 296 52.5% 47.1% Junior college 30 72 6.1% 11.4% Bachelor's degree 90 111 18.4% 17.6% Graduate degree 49 70 10% 11.1% 488 629 Total 100% 100% CHAPTER 4 MEASURES C
n the Focus Problem at the beginning of this chapter, a study was described comparing the hatch ratios of wood duck nesting boxes. Group I nesting boxes were well separated from each other and well hidden by available brush. There were a total of 487 eggs in group I boxes, of which a field count showed about 268 hatched. Group II nesting boxes were placed in highly visible locations and grouped closely together. There were a total of 818 eggs in group II boxes, of which a field count showed about 260hatched. (a) Find a point estimate p̂1 for p1, the proportion of eggs that hatch in group I nest box placements. (Round your answer to three decimal places.)p̂1 = Find a 95% confidence interval for p1. (Round your answers to three decimal places.) lower limit upper limit (b) Find a point estimate p̂2 for p2, the proportion of eggs that hatch in group II nest box placements. (Round your answer to three decimal places.)p̂2 = Find a 95% confidence interval for p2. (Round your…

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