Two classes take a test. At the .05 level the researcher wants to know if the first class has a higher mean than the second classClass 1 31 293137 3231Class 2 2728323431Is the alternative hypothesisFind the critical value(s)Find test statistic3430 293028(Give the letter: A-Less Than, B- Greater Than, C- Not Equal)(separate with a comma if there are 2)

In testing of hypothesis, there are two hypotheses - null and alterative. These two hypotheses…

Answered: Two classes take a test. At the .05…

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 average American gets a haircut every 43 days. Is the average different for college students? The data below shows the results of a survey of 11 college students asking them how many days elapse between haircuts. Assume that the distribution of the population is normal. 32, 46, 49, 45, 50, 49, 43, 45, 38, 46, 42 What can be concluded at the the a =0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Họ: ? Select an answer v H. Select an answer Y C. The test statistic ? (please show your answer to 3 decimal places.) d. The p-value - (Please show your answer to 3 decimal places.) e. The p-value is 2 f. Based on this, we should Select an answer the null hypothesis, g. Thus, the final conclusion is that, The data suggest the populaton mean is significantly different from 43 ata = 0.01, so there is fficient evidence tr conrlide that -he nonulation.
4 Given that the approximate shape for the distribution of a data set is right-skewed (positive). If median = 10 and mode = 8, then which of the following is not a * ?possible value for the mean (ähäi 3) %3D 11 12 6. 15
1
Can you tell me what the solution would be to this one?
Is there a difference between the ages of Actors and Actresses? The table shows the ages of Actors and Actress when they received their first Oscar. Assume that the two samples are randomly selected. At the 0.1 significance level, test the claim that there is a mean difference in the ages of Actors and Actresses. (Be sure to subtract in the same direction). Actor (years) Actress (years) Difference (years) 60 60 52 56 61 61 62 58 36 36 49 51 45 50 What are the correct hypotheses? (Select the correct symbols and values.) Họ: Select an answer ? v Select an answer H1: Select an answer v ? v Select an answer Original Claim = Select an answer df = 15
I need help finding the test statistics and p-value. Please help
Please help me with Q 35,36,37,38 please I don’t get it
Helllo, can you help me with this? I am still piled with other paper works. Can I have it after 1 and half hoour or in 2 hours? Thank yo for your kind consideration! God bless. - Referring on the given data below, compare the examination results in Science subject of the two groups of grade 9 students in Camanggaan National High School by computing their means, modes, ranges, MAD, Variance, standard deviations (treating the data as sample), skeweness and kurtosis. (Table at the pic) Which between the 2 groups performed better? Justify your answer. Which between the 2 groups is more consistent? Justify your answer. What types of distribution are the two groups of examinees in terms of skewness?
Do male and female college students have the same distribution of living arrangements? Use a level of significance of 0.05. Suppose that 87 randomly selected male college students and 95 randomly selected female college students were asked about their living arrangements: dormitory, apartment, or other. The results are shown in Table. Do male and female college students have the same distribution of living arrangements? Dormitory Apartment Other Male 37 45 5 Female 38 37 20 What is the chi-square test-statistic for this data?χ2=
It will be enough just giving the correct answer(Please as FAST as possible)You don't need to write detailed explanation.
can you give me a sample of this one? Test on mean for one sample
Mathematics scores on the CBBC standardized exam are normally distributed with a population mean of 164 and a population standard deviation of 12. Ms. Norbury believes her two classes of a total of 48 students have a mathematics comprehension different than 164 and she decides to give her classes the exam. The mean on the exam was 161. Test to determine if her class' mathematics comprehension is different than 164 at the 0.05 level of significance. (Show all seven steps.)

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