Please answer the following questions:1. Which feature of an independent-samples t-test distinguishes it from the other two types of ttests?a. The independent variable is measured on a nominal scale.b. The population standard deviation is known.c. The dependent variable is measured on a ratio scale.O d. The groups are unrelated.2. Which feature is required for a paired-samples t-test?a. The dependent variable is measured on an ordinal scale.b. Two samples from the same or linked participants are collected.c. The data are collected over at least three points in time.d. The population mean for one condition is known.

We have given the two statement one is about t - test, and another one is about paired- same sample…

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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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Consider a sample data set with the summary statistics s = 112, Q = 58, and Qu= 203. a. Calculate lQR. b. Calculate IQR/s. c. Is the value of IQR/s approximately equal to 1.3? What does this imply? a. IQR =
9. Find the sample standard deviations for the following sample data. Round your answer to the nearest hundredth. X: 23 a. 7.97 b. 9.32 c. 10.42 d. 7.13 20 14 35 28
5 - Which of the following will give the value for the third quartile? a. QUARTILE.INC(array, 0.25) b.QUARTILE.INC(array, 0.75) c. PERCENTILE.INC(array, 0.75) d.DECILE.INC(array, 0.30)
a. Develop a hypothesis test that can be used to determine whether the mean annual consumption in Webster City is higher than the national mean. Ho: $21.5 Ha: >21.5 b. What is a point estimate of the difference between mean annual consumption in Webster City and the national mean? (2 decimals) c. At a = 0.01, test for a significant difference by completing the following. Calculate the value of the test statistic (2 decimals). The p-value is Reject the null hypothesis? (4 decimals) Yes v What is your conclusion? Conclude the population mean consumption of milk in Webster City is greater tha
Below are the SPSS results of a related (dependent) samples t-test. Use the SPSS results to answer Questions 5, 6, and 7. Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1 Statistics Posttest 57.1250 40 16.73962 2.64677 Statistics Pretest 49.9250 40 15.09014 2.38596 Paired Samples Test Paired Differences t df Sig. (2-tailed) Mean Std. Deviation Std. Error Mean Pair 1 Statistics Posttest - Statistics Pretest 7.200 12.313 ( a ) ( b ) ( c ) .001 Find the mean of the differences ( and standard deviation of the differences (Sd). Replace “a,” “b,” and “c” in the table above with the correct values. Round to the third decimal place. Do you think there is a statistically significant difference between the pretest and posttest at the .05 level of significance?
24 In your work, assume the 5% significance level. Use the following data Wicked Witch.csv to answer the below questions. Take a screenshot of your output and based on that, answer the following questions. a) Import the data into JASP and provide an explanation on the descriptive statistics for the variable Complaint split across regions. 1. Which of the regions has the highest average number of complaints, indicate the average? 2. Which of the regions has the largest standard deviation of complaints, indicate the standard deviation? 3. Based on the descriptive output from JASP, can we expect the average number of complaints across the four regions to be different? Why? b) Write a hypotheses for evaluating whether the average number of complaints caused varies across the four regions. c) Run the ANOVA analysis in JASP (with Complaints as the dependent variables and Region as the Fixed Factors). Provide a capture of the output and answer the following questions:
I need to understand how to calculate... Can you please be clear with the explanation ....
The number of ornaments placed on trees is recorded. The results are as follows: 26 26 22 29 24 30 26 34 21 24 20 31 20 35 32 33 26 26 29 29 Find the Mean, Median, Mode, Midrange, Variance and Standard Deviation of the data.Round to 2 decimal places if necessary. Mean: Median: Mode: Midrange: Variance: Standard Deviation:
CANVAS NIGHTIN... Proctor book orms - Teams Microsoft Office H... APA Citation Gene... Paraphrasing Tool... COMPLIO Examity :: Home Score: 22.4/43 8/10 answered Question 10 ▼ < Please find the range, sample standard deviation and inter-quartile range (IQR) of the following data set. 26 39 60 69 73 76 93 93 94 96 range = (Please enter an exact answer.) standard deviation (s) = (Please show your answer to one decimal place.) IQR = (Please enter an exact answer.) A new number, 288, is added to the data set above. Please find the new range, sample standard deviation and IQR of the new data set. range = (Please enter an exact answer.) standard deviation = (Please show your answer to one decimal place.) IQR = (Please enter an exact answer.) Which measure of spread is less affected by the addition of the extreme observation? O IQR O standard deviation O Range Hint: Help Video [+] Textbook MacBook Air F6 2 @ F2 W Submit Question 20 F3 #3 LL $ F4 R % 5 F5 T ^ 6 Y & 7 A4 F7 U * CO 8 DII FB ( 9…
12. Stem and leaf Plot: (Sample )Variable: Gas $ Key: 12 = 1:2 1 : 2 2 : 3 : 4 : 5 : 55 6 : 7 : 88 8 : 9 12a. Use the above Stem and leaf plot and calculate the range. 12b. Use the above Stem and leaf plot and calculate the Quadratic Mean. 12c. Calculate the upper fence. 12d. Estimate the standard deviation.
9. Which measures aren’t resistant? (more than one could be correct) a. mean b. median c. IQR d. Standard deviation e. range f. coefficient of correlation

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