The statistical software output for this problem is :
Test statistics = 5.86
P-value = 0.2097
Customer Distribution by Weekday: A drop-in auto repair shop staffs the same number of mechanics on...
Can someone please show me how to do these type problems using Excell? Please? Customer Distribution by Weekday: A drop-in auto repair shop staffs the same number of mechanics on every weekday (weekends are not counted here). One of the mechanics thinks this is a bad idea because he suspects the number of customers is not evenly distributed across these days. For a sample of 289 customers, the counts by weekday are given in the table. Number of Customers by...
2. [3/5 Points] DETAILS PREVIOUS ANSWERS STEVENSSTAT4 11.P.003.SOFTWARE. 2/4 Submissions Used MY NOTES ASK YOUR TEACHER Customer Distribution by Weekday: A drop-in auto repair shop staffs the same number of mechanics on every weekday (weekends are not counted here). One of the mechanics thinks this is a bad idea because he suspects the number of customers is not evenly distributed across these days. For a sample of 289 customers, the counts by weekday are given in the table. Number of...
1. [4/5 Points] DETAILS PREVIOUS ANSWERS STEVENSSTAT4 11.P.001.SOFTWARE. 1/4 Submissions Used MY NOTES ASK YOUR TEACHER Answers to Multiple-Choice Problems: A student wants to see if the correct answers to multiple choice problems are evenly distributed. She heard a rumor that if you don't know the answer, you should always pick C. In a sample of 100 multiple-choice questions from prior tests and quizzes, the distribution of correct answers are given in the table below. In all of these questions,...
9. [3/5 points) DETAILS PREVIOUS ANSWERS STEVENSSTAT4 11.P.013.SOFTWARE. 2/4 Submissions Used MY NOTES ASK YOUR TEACHER Grades and AM/PM Section of Stats: There were two large sections of statistics this term at State College, an 8:00 (AM) section and a 1:30 (PM) section. The final grades for both sections are summarized in the contingency table below. Observed Frequencies: O's A B с D F Totals AM 6 11 19 19 15 70 PM 19 20 19 12 8 78 Totals...
A telephone company claims that the service calls which they receive are equally distributed among the five working days of the week. A survey of 120 120 randomly selected service calls was conducted. Is there enough evidence to refute the telephone company's claim that the number of service calls does not change from day-to-day? Days of the Week Mon Tue Wed Thu Fri Number of Calls 24 31 17 24 24 Step 1 of 10: State the null and alternative...
distributed Use a t-test to test the claim about the population mean ji at the given level of significance a using the given sample statistics. Assume the population is normally Claim: #26; a=0.10 Sample statistics: X = 26.5, s=4.3, n = 11 What are the null and alternative hypotheses? Choose the correct answer below O A. Ho +26 OB. Ho: 226 H, = 26 H <26 OCH p=26 OD. HY S 26 H, #26 H>26 What is the value of...
Use technology and a t-test to test the claim about the population mean i at the given level of significance at using the given sample statistics. Assume the population is normally distributed Claim: H > 72; « = 0.05 Sample statistics: X = 73.7, 5 = 3.3, n = 26 What are the null and alternative hypotheses? Choose the correct answer below. O A. Ho: 272 OB. Ho: = 72 Hau<72 H:#72 OC. H: 72 OD. Ho: HS72 HA=72 HA...
Use technology and a t-test to test the claim about the population mean p at the given level of significance using the given sample statistics. Assume the population is normally distributed Claim je> 70, a = 0.10 Sample statistics. x=71,3,5 = 29, n. 23 What are the null and alternative hypotheses? Choose the correct answer below. O A. Ho #70 OB. Hy 270 HAN= 70 HAR < 70 O C. W, 70 OD. H 570 HA #70 HA 70 What...
Rainy Weekends - Significance Test: During the summer of 2012 in Acadia National Park, the mean rainfall on weekends was greater than the mean on weekdays. In this problem we determine whether or not it rained significantly more on weekends. A significant difference is one that is unlikely to be a result of random variation. The table summarizes this data. The x 's are actually population means but we treat them like sample means. Necessary information: n x s2 s ...
During the summer of 2012 in Acadia National Park, the mean rainfall on weekends was greater than the mean on weekdays. In this problem we determine whether or not it rained significantly more on weekends. A significant difference is one that is unlikely to be a result of random variation. The table summarizes this data. The x 's are actually population means but we treat them like sample means. Necessary information: n x s2 s Weekends (x1) 36 0.325 0.283...