If this was 2 sample independent data, what assumption(s) would we need to check? 25 normally distributed data equal variances all nip, > 5 multinomial experiment all E > 5 What is the value of our test statistic? Round to 2 decimal places. Type your answer..... 26 What is the critical value for the rejection region if this was a less than alternative hypothesis at the 1% significance level? Round to 3 decimal places. Type your answer....
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- Arvey is conducted to explore stados son eplume 10 panculs, this survey phones, their view the importance of daily posting on social media, and also whether or University of Arkanas students A sample of 150 Wilon College of Business students were s the The Summary Statistics Table for students Daily Phone Usage Time in minutent is shown an below. Daily Phone Usage Time (in minutes) Mean Standard Error Median Mode Standard Deviation Sample Variance Kartosis Skewness Range Minimum Maximum Sum Count 190 7.37 1474 O a normal distribution O a positively skewed distribution 7 7 8143.65 -1.05 1.35 300 0 300 26150 150 the type of cell phones, many ph of well phones is less According to the sample statistics, the shape of this sample distribution of "Daily Phone Usage Time for these 150 students is likely to be O a uniform distribution O a negatively skewed distributionData for head injury measurements (in HIC, which is a standard head injury criterion) from samples of small, midsize, and large cars involved in the standard crash test were used to produce the accompanying ANOVA table. Using a 0.05 significance level, test the claim that the different size categories have the same mean head injury measurement. Does the size of a car appear to affect head injuries? ANOVA table Dialog content starts Sum of Squares df Mean Square F Sig. Between Groups 73630.272 2 36815.136 1.606 0.227 Within Groups 435546.443 19 22923.497 Total 509176.715 21 What are the hypotheses to test? H0: H1: The test statistic is (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) ___________H0. Since the P-value is__________than the significance level, there ___________sufficient evidence to refute the claim that the different size…Tire pressure (psi) and mileage (mpg) were recorded for a random sample of seven cars of thesame make and model. The extended data table (left) and fit model report (right) are based on aquadratic model What is the predicted average mileage at tire pressure x = 31?
- The valve pressure was tested on 250 engines and the mean pressure was 5.9 lbs/square inch. Assume the variance is known to be 0.36. If the valve was designed to produce a mean pressure of 5.8 lbs/square inch, is there sufficient evidence at the 0.02 level that the valve performs about the specifications?Microsoft Edge 3 https://elearn.squ.edu.om/mod/quiz/attempt.php?attempt3D1894461&cmid3890604&page=12 QU E-LEARNING SYSTEM (ACADEMIC) Business Statistics 1 || Spring21 Time left 1:46:05 Quiz Question 13 The total cost for a production process is $600 minus two times the number of units produced. The mean and variance of the number of produced are 200 and 20, respectively. So, the mean and variance of the total cost are ot yet swered arked out of a. 600, 200 Nu 1 Flag estion ОБ. 400, 180 O c. 1000, 560 O d. 200, 80 NEXT PAGE PREVIOUS PAGEundergraduate students taking a concepts and methods course at the university conducted a survey about GPA and major. There were 197 total students and 3 groups of majors that were randomly sampled. The mean square within groups was 0.081 and the mean square between groups was 0.015. What F-statistic output is correct for this problem?
- d) Why is a smaller MSE (Mean Square Error) better?Avalanches can be a real problem for travelers in the western United States and Canada. Slab avalanches studied in Canada had an average thickness of u = 67 cm. A sample of 31 avalanches in the U.S. gave a sample mean of = 63.0 cm. It is known that o = 10.3 cm for this type of data. Use a 0.03 level of significance to test the claim that the mean slab thickness of avalanches in the United States is different from that in Canada. Use the P-Value Approach. What are the hypotheses for this problem? А: Но и 3D 63.0 ст us На и + 63.0 ст B: Но и 63.0 ст С: Но и %3D 67 ст us HA и < 67 ст D: Ho u = 67 cm vs HA H# 67 cm B O AGive an example of a small set of dara for ehich the mean is larger than the third quartile
- Given a normally distributed data, what is the area of the region less than one standard deviationabove the mean and more than three standard deviations above the mean?determine if the frequency of deficiencies of variable (influenza/pneumococcal shots) are statistically significantly different between for-profit and non-profit nursing homes, interpret the results for the chi-square?Match the type of test that would be most appropriate for each of there scenarios. Group of answer choices Anova one sample T test Chi squared test for indipendence Two sample Z test Two sample t test We want to compare the mean number of hours per week people watch Netflix, Hulu, and Amazon Prime. Is there a difference between income level (poor, middle class, wealthy) and the types of store people shop at related. We want to compare the prices of target and walmart shopping stores. We can to see if the percentage of dog owners now is different from the year 2000. We want to find out if there is a higher…