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- Following is the rating of marketing aggressivity (X) and sales performance (Y) of 8 sales staffs in Glovis Co in the past year: Table Attached Question: What is the hypothesis of the study?For which of the following pairs of significance levels and pp-values are the results statistically significant? That is, for each αα, should H0H0 be rejected based on the given pp-value? Select all cases where H0H0 should be rejected: α=α=0.003; pp-value==0.039 α=α=0.001; pp-value==0.002 α=α=0.010; pp-value==0.095 α=α=0.050; pp-value==0.009 α=α=0.025; pp-value==0.189 α=α=0.100; pp-value==0.02The marketing head of a leading chocolate manufacturer must decide amongfour different wrapper styles for the chocolate. To provide a database for the decision, he hasthe chocolate placed in the different wrappers and distributes them to five supermarkets. At the end of 2 weeks, he finds that the following amounts of chocolate were sold: Wrapper A Wrapper B Wrapper C Wrapper D 90 98 130 82 compute the Pearson correlation coefficient (Chi Square Test)
- 3. Mr. Smith Claims that students at Bamfield College of Aeronautic have a higher grade point average that those who attend who attend the Aviation College in Mar del Plata. The information below was collected at the two higher education institutions. Is there sufficient proof to reject Mr. Smith claim? Use alpha of 0.05 to test the claim. Assuming that the populations are normally distributed, samples are independent, and the variances are unequal. Mar Del Plata Bamfield Sample size = 17 Sample size = 16 Sample SD= 0.70 Sample SD= 0.72 Sample mean = 2.96 Sample mean = 3.04An Analysis of Variance (ANOVA) demonstrated the following results for course sense of community, F(2, 27) = 2.56, p = .07. Students in online courses (M = 12.4, SD = 2.26), blended courses (M = 13.62, SD = 5.56), and the residential courses (M = 14.65, SD = 7.56) were measured on their sense of community. What can be concluded based on these results?The following data represent a sample of people's smoking habits and their usage of seat belts while in a car. A researcher wants to determine whether smoking habits and seat belt usage are related. Test the researcher's claim at the α=0.05 level of significance. No Seat Belt Seat Belt Smoke 67 448 Do not Smoke 327 2,187 *Source: Harris Poll Determine the null and alternative hypotheses. H0:Smoking habits and seat belt usage are independent.Ha: Smoking habits and seat belt usage are dependent. H0: Smoking habits and seat belt usage have the same distribution.Ha: Smoking habits and seat belt usage follow a different distribution. Determine the test Statistic. Round to two decimal places.χ2 = Determine the pp-value. Round to four decimal places.p-value = Make a decision. Reject the null hypothesis. Fail to reject the null hypothesis. Make a conclusion. There is not sufficient evidence to support the claim that smoking habits and seat belt usage are related.…
- A random sample of senior citizens living in a retirement village reported that they had an average of 1.42 face-to-face interactions per day with their neighbors. A random sample of those living in age-integrated communities reported 1.58 interactions per day. Is the difference between the two senior citizen groups significant? Please provide t critical, t obtained and your decision. Retirement Community 1 Retirement Community 2 Mean1 = 1.42 Mean2 = 1.58 s1 = 0.10 s2 = 0.78 N1 = 43 N2 = 37Suppose the average reading speed of 15 randomly selected elementary school students is 25, and the average reading speed of 15 randomly selected middle school students is 31. You compute an independent-samples t-test, and your t-obtained is 5.72, which is statistically significant. What is the most appropriate conclusion? Think of what would be the experimental hypotheses, and in a sentence or two describe your interpretation of the results, using the actual independent and dependent variables, as you would explain it to a reporter.How would Interpret the following data using two sample t-testing if unequal variances? Each of these columns of data represent a different soda bottling line, with the values representing the amount of soda per bottle in ounces. The business question being asked for each of the three comparisons is "do the two bottling lines bottle the same volume of soda on average, bearing in mind that the sample difference that you may observe could just be coincidence." C7 C9 Mean 20.01679499870 19.98479325352 Variance 0.01032479977 0.00890427549 Observations 50.00000000000 50.00000000000 Hypothesized Mean Difference 0.00000000000 df 97.00000000000 t Stat 1.63184710438 P(T<=t) one-tail 0.05297709034 t Critical one-tail 1.66071461012 P(T<=t) two-tail 0.10595418068 t Critical two-tail 1.98472318601 Need help intrepreting Data using excel : Change number to 11 decimal places or correct intrepretation of data Two Tail P and t -(Excel) Two -Sample…
- Which of the following is the correct option for the appropriate test and degree of freedom (sd) for the hypothesis-based compliance of the data of a 6-category (class) variable, which is summarized by counting 300 pieces of data? Please select one: a. Ki square sd = 299 b. t test sd = 299 c. t test sd 5 d. Ki square sd = 49 e. Ki Square sd = 5The data below are stress-test scores from 6 nurses from the Emergency Care (EC) unit and 6 nurses from the Long Term (LT) care unit who were randomly selected for the study. The investigator wants to test, at the 5% level, whether there is a difference in stress test scores in the EC group and the LT group. EC LT 5 2 9 3 8 5 10 6 7 4 6 2 State the hypotheses. What statistical test should be used to determine if there is a difference in stress scores between EC and LT nurses? Determine the appropriate critical value and set up the decision rule. Compute the test statistic. Interpret your results. Give your conclusion.The following table shows the results of a two-factor analysis of variance with 2 levels of factor A, 3 levels of factor B, and a separate sample of n = 5 participants in each of the treatment conditions. Note that several values are missing in the table. What is the missing value for the F-ratio for the AxB interaction? Source SS df MS Between 80 xx A 8 xx xx F = xx B xx xx 20 F = xx AxB xx xx xx F = xx Within xx xx xx Total 176 xx Question options: a. 4 b. 2 c. 16 d. 8