Write all the normal subgroups of S4. A sagemath output is fine.
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- Which of these is NOT true about an ANONA A.Data must be independent of each other B. Number of data points must be the same in each group C. We need at least three groups to condust an ANOVA d. Data within each sample is randomly distributedFind the modal class of the data.The proportion of defective items is not allowed to be over 12%. A buyer wants to test whether the proportion of defectives in his shipment of 1000 items exceeds the allowable limit. The buyer takes a SRS of 100 items and finds that 19 are defective. Find the p-value Group of answer choices 0.0048 0.0256 0.0116 0.0526
- If you have a research scenario in which the IV has two and only two levels and is between subjects in nature with a quantitative DV, then you would use the independent groups t test. O True O FalseA grocery store manager did a study to look at the relationship between the amount of time (in minutes) customers spend in the store and the amount of money (in dollars) they spend. The results of the survey are shown below. Time 10 8 6 13 19 18 27 10 7 Money 58 25 41 51 84 81 87 45 15 r2r2 = ____(Round to two decimal places) Interpret r2r2 : Given any group that spends a fixed amount of time at the store, 77% of all of those customers will spend the predicted amount of money at the store. There is a large variation in the amount of money that customers spend at the store, but if you only look at customers who spend a fixed amount of time at the store, this variation on average is reduced by 77%. There is a 77% chance that the regression line will be a good predictor for the amount of money spent at the store based on the time spent at the store. 77% of all customers will spend the average amount of money at the store.If you have a research scenario in which the IV has two and only two levels and is within subjects in nature with a quantitative DV, then you would use the independent groups t test. True O False
- What is the t for an independent-groups t test for these data? G 1 G 2 52 37 41 17 46 43 55 64 60 39 48 51 46 41 34 46Which of these is the best description of a block?A) A random sample of a population who serve assubjects in an experimentB) Any of the different groups randomly selected in astratified sampleC) Any subgroup of the subjects in an experimentD) A subgroup of experimental subjects randomlyassigned the same treatmentE) A subgroup of experimental subjects that are thesame with regard to some source of variationAccording to the Pew report, 14.6% of newly married couples in 2008 reported that their spouse was of another race or ethnicity (CNNLiving, June 7, 2010). In a similar survey in 1980, only 6.8% of newlywed couples reported marrying outside their race or ethnicity. Suppose both of these surveys were conducted on 500 newly married couples. (You may find it useful to reference the appropriate table: z table or t table) Let p1 represent the population proportion in 2008 and p2 the population proportion in 1980. a. Specify the competing hypotheses to test the claim that there is an increase in the proportion of people who marry outside their race or ethnicity. multiple choice 1 H0: p1 − p2 = 0; HA: p1 − p2 ≠ 0 H0: p1 − p2 ≤ 0; HA: p1 − p2 > 0 Correct H0: p1 − p2 ≥ 0; HA: p1 − p2 < 0 b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) b-2. Find the p-value.…
- According to the Pew report, 14.6% of newly married couples in 2008 reported that their spouse was of another race or ethnicity (CNNLiving, June 7, 2010). In a similar survey in 1980, only 6.8% of newlywed couples reported marrying outside their race or ethnicity. Suppose both of these surveys were conducted on 500 newly married couples. (You may find it useful to reference the appropriate table: z table or t table) Let p1 represent the population proportion in 2008 and p2 the population proportion in 1980. a. Specify the competing hypotheses to test the claim that there is an increase in the proportion of people who marry outside their race or ethnicity. multiple choice 1 H0: p1 − p2 = 0; HA: p1 − p2 ≠ 0 H0: p1 − p2 ≤ 0; HA: p1 − p2 > 0 H0: p1 − p2 ≥ 0; HA: p1 − p2 < 0 b-1. Calculate the value of the test statistic. (Round intermediate calculations to at least 4 decimal places and final answers to 2 decimal places.) b-2. Find the p-value.…A graduate-level computer science course only gives the grades of A, B, or C. The department has determined that there should be 40% A's given, 40% B's given and 20% C's given as final grades for the course. For the spring 2021 semester, 200 students took the course and 100 students received A's, 50 students received B's and 50 students received C's, so those are my observed frequencies. We want to do a Chi-square Multinomial Goodness of Fit test to see if our grading guidelines match up with what is actually happening. What is the correct number of degrees of freedom for this hypothesis test?A graduate-level computer science course only gives the grades of A, B, or C. The department has determined that there should be 40% A's given, 40% B's given and 20% C's given as final grades for the course. For the spring 2021 semester, 200 students took the course and 100 students received A's, 50 students received B's and 50 students received C's, so those are my observed frequencies. We want to do a Chi-square Multinomial Goodness of Fit test to see if our grading guidelines match up with what is actually happening. The Chi-square test statistic is = 18.75. What would I compare that to if I wanted to use that test statistic to make a decision on the hypothesis test? O 1- the p-value O The sum of squares O The Chi-square critical value O The p-value

