Sophia statistics unit 2 Study guides, Class notes & Summaries

STATISTICS MISC - SOPHIA STATISTICS UNIT 5 – MILESTONE 5 LATEST 2023 If we first note the denominator of Then, getting the z-score we can note it is This tells us that 36.1 is 2.83 standard deviations above the value of 36. Note that when you round some values you may get slightly different results, but the results should be relatively close to this final calculated value. CONCEPT Z-Test for Population Means 2 Emile has calculated a one-tailed z-statistic of -1.97 and wants ...

Sophia Statistics Unit 2 Milestone practice questions DETAILED ANSWER KEY Questions and Answers (latest Update 2023), 100% Correct and Complete, Highly Recommended, Download to Score A+ The manager went over the sales of mobile phones at the store and found that the mean sale was 45, with a standard deviation of 4. On a particular day, 52 mobile phones were sold. What is the z-score of the sale of mobile phones on that day? -28 28 1.75 -1.75 RATIONALE Recall that the z-score can be cal...

STATISTICS MISC - SOPHIA STATISTICS UNIT 5 – MILESTONE 5 LATEST 2023

MAT 240 SOPHIA (Introduction to Statistics) UNIT 2 MILESTONE 2 QUESTIONS AND ANSWERS WITH RATIONALES VERIFIED by EXPERT (SNHU

STATISTICS MISC - SOPHIA STATISTICS UNIT 5 – MILESTONE 5 LATEST 2023

STATISTICS MISC - SOPHIA STATISTICS UNIT 5 – MILESTONE 5 LATEST 2023

STATISTICS MISC - SOPHIA STATISTICS UNIT 5 – MILESTONE 5 LATEST 2023 STATISTICS MISC UNIT 5– MILESTONE 5 You passed this Milestone Joe is measuring the widths of doors he bought to install in an apartment complex. He measured 72 doors and found a mean width of 36.1 inches with a standard deviation of 0.3 inches. To test if the doors differ significantly from the standard industry width of 36 inches, he computes a z-statistic. What is the value of Joe's z-test statistic? 2.83 -1.81...

Clarice was in the process of creating a report on the performance of her students and was trying to determine the z-score related to overall student scores. If the mean percentage of students was 75% and the standard deviation was 10%, what z-score would correspond to a student that ended the course with a 95%? 1 3 -3 2 -2 -1 RATIONALE . 4/21/2020 Sophia :: Welcome Remember the formula for z-score is: For this problem these values are as follows: Plugging these values into the f...

Sophia Statistics Unit 4 Milestone practice questions DETAILED ANSWER KEY Questions and Answers (latest Update 2023), 100% Correct and Complete, Highly Recommended, Download to Score A+ The table below shows the grade and reading level for 5 students. Grade Reading Level Student 1 2 6 Student 2 6 14 Student 3 5 12 Student 4 4 10 Student 5 1 4 For grade, the mean is 3.6 and the standard deviation is 2.1. For reading level, the mean is 9.2 and the standard deviation is 4.1. Using the for...

Sophia Statistics Unit 3 Milestone practice questions DETAILED ANSWER KEY Questions and Answers (latest Update 2023), 100% Correct and Complete, Highly Recommended, Download to Score A+ Which of the following is a property of binomial distributions? The sum of the probabilities of successes and failures is always 1. All trials are dependent. The expected value is equal to the number of successes in the experiment. There are exactly three possible outcomes for each trial. RATIONALE Recall ...