The average final exam score for the statistics course is 77%. A professor wants to see if the average finalexam score for students who are given colored pens on the first day of class is different. The final examscores for the 13 randomly selected students who were given the colored pens are shown below. Assumethat the distribution of the population is normal.77, 91, 64, 96, 96, 75, 74, 78, 84, 98, 78, 80, 74What can be concluded at the the a = 0.10 level of significance level of significance?a. For this study, we should use Select an answerb. The null and alternative hypotheses would be:Ho: ?✓ Select an answer ✓H₁: ? Select an answerc. The test statistic ? ✓ =d. The p-value =e. The p-value is ? ✓ af. Based on this, we should [Select an answer the null hypothesis.(please show your answer to 3 decimal places.)(Please show your answer to 4 decimal places.)

a. It is assumed that μ is the population mean final exam score for students who are given colored…

Answered: The average final exam score for the…

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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The following are the exam scores for a new literature class: 34, 41, 90, 80, 18, 20, 25, 70, 25, 20, 50, 40, 36. The class follows a typical grading scare where 65% is the lowest passing gradeand 100% is the highest. Create a box plot. Be sure to identify all thenecessary terms. What can we infer from looking at the box plot?
The midterm and final exam grades for a statistics course are provided in the data set below. Jaymes, a student in the class, scored 86 on both exams. Treat the given data sets as samples. Midterm: 80, 78, 85, 82, 79, 79, 78, 86, 80, 84, 78, 84, 80, 84, 81, 78, 81, 82, 78, 84 Final: 81, 88, 68, 69, 69 81, 82, 86, 76, 71, 72, 68, 77, 86, 68, 83, 84, 71, 81, 87 z-score for midterm: 1.857 z-score for final: 1.181 Based on the z-scores calculated above, which of Jaymes's grades is more unusual, the midterm grade or the final exam grade? Select the correct answer below: A. The absolute value of the z-score for the final exam grade is greater than for the midterm grade, so the final exam grade is more unusual. B. The absolute value of the z-score for the midterm exam grade is less than for the final grade, so the midterm grade is more unusual. C. The absolute value of the z-score for the midterm exam grade is greater than for the final grade, so the midterm grade is more…
If you have the following observations: 100, 50, k, 30, 150, then what is the possible value of the median? Select one: O a. 30 or 50 O b. 30 or k or 50 O c. k O d. none
I need help with something regarding this problem. The National Sleep Foundation recommends that adults aged 18 to 64 get an average of 8 hours of sleep per night. A survey of sleep hours was taken during a Statistics class. The data is listed below: 4, 5, 5, 5, 5.5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 10, 10 Do we have enough evidence at the 0.05 significance level to say that statistics students tend to get less sleep than the recommended average of 8 hours per night? How would I get the degrees of freedom?
The average fruit fly will lay 421 eggs into rotting fruit. A biologist wants to see if the average wil be lower for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 429, 426, 402, 401, 393, 424, 426, 415, 416, 422, 414, 428 What can be concluded at the the a = 0.05 level of significance level of significance? a. For this study, we should use t-test for a population mean b. The alternative hypothesis would be: H: 421 c. The test statistic - -1.358 (please show your answer to 3 decimal places.) d. Based on this, we should fail to reject e. Thus, the final conclusion is that... The data suggest that the population mean number of eggs that fruit fies with this gene modified wil the null hypothesis.
Find the median for the following group of data items. 35, 32, 31, 30, 36, 33, 29, 31 The median is 31.5 (Type an integer or a decimal.) C
find an example of when statistics were misused/skewed and state the reason why you think the statistics were reported that way.
The following are the scores of 10 students in a 50-item quiz. 42, 38, 33, 46, 42, 40, 38, 36, 45,43 What is the median?
The first picture is the question and the second is the ones that I need help with. Thanks!
Please help with D E F Please Help with D E F
The average fruit fly will lay 389 eggs into rotting fruit. A biologist wants to see if the average will be fewer for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. 358, 388, 362, 382, 371, 385, 384, 393, 403, 389, 405 What can be concluded at the the a = 0.10 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho? Select an answer♥ H₁ PS Select an answer c. The test statistic ? (please show your answer to 3 decimal
need help with this please!

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