Sophia statistics unit 5 - Study guides, Class notes & Summaries

Boys Girls Tennis 18 30 Soccer 42 15 Swimming 12 18 Select the observed and expected frequencies for the boys participating in soccer. Observed: 42 Expected: 22.5 Observed: 42 Expected: 24 Observed: 57 Expected: 24 Observed: 57 Expected: 22.5 RATIONALE If we simply go to the chart then we can directly see the observed frequency for boys participating in soccer is 42. To find the expected frequency, we need to find the number of occurrences if the null hypothesis is true, which in...

MAT 240 SOPHIA (Introduction to Statistics) UNIT 5 MILESTONE 5 QUESTIONS AND ANSWERS WITH RATIONALES VERIFIED by EXPERT (SNHU)

Sophia Statistics Unit 5 Milestone, attempt score: 16/24., Latest Summer 2023.

8 questions were answered incorrectly. 1 Which of the following is an example of a parameter? Half of the receipts at the coffee shop include web address for giving feedback. 9047 out of 531,310 citizens voted in the special election for city council. 3.5% of the restaurant goers are given a survey to fill out. All of the members of the community watch group gave their availability to volunteer over the summer. RATIONALE Recall a parameter comes from the entire set of interest, the popu...

Sophia Statistics Unit 5 Milestone,..pdf

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...

Sophia Learning STAT1001: Introduction to Statistics UNIT 5 — MILESTONE 5 Answered Latest Fall 2024/25 attempt for this quiz 91%

What value of z* should be used to construct a 97% confidence interval of a population mean? Answer choices are rounded to the thousandths place. ● 1.88 ● 1.65 ● 1.96 ● 2.17 RATIONALE Using the z-chart to construct a 97% CI, this means that there is 1.5% for each tail. The lower tail would be at 0.015 and the upper tail would be at (1 - 0.015) or 0.985. The value of 0.9850 is actually on the z-table exactly. 0.9850 corresponds with a z-score of 2.17. CONCEPT Confidence Interv...

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

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