A drugstore considers a wait of more than 5 minutes to be a defect. Each week 100 customers are randomly selected and ti...
A drugstore considers a wait of more than 5 minutes to be a defect. Each week 100 customers are randomly selected and timed at the checkout line. The numbers of defects for 20 consecutive weeks are given below.
4 4 5 5 5 5 5 6 6 6 6 12 6 6 6 7 6 7 8 7
Find the correct lower control limit
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A drugstore considers a wait of more than 5 minutes to be a defect. Each week 100 customers are randomly selected and ti...
Riverdale Hospital is concerned over the number of times patients must wait more than 30 minutes...
Riverdale Hospital is concerned over the number of times
patients must wait more than 30 minutes beyond their scheduled
appointments. The quality team decided to take random samples of 75
patients to see how many in each sample had to wait more than 30
minutes. Each instance is considered a defect in the clinic
process. The table below contains the data for 15 samples.
Sample
Number of defects
1
5
2
2
3
1
4
3
5
1
6
5...
3. Waiting times (in minutes) of customers in a bank where all customers enter a single...
3. Waiting times (in minutes) of customers in a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the mean and median for each of the two samples, then compare the two sets of results. Single Line 6.36.3 6.66.6 6.76.7 6.86.8 6.96.9 7.17.1 7.67.6 7.87.8 7.87.8 7.87.8 Individual Lines 4.14.1 5.55.5 6.06.0 6.16.1 6.26.2 7.87.8 7.87.8 8.78.7 9.29.2 10.010.0 The mean waiting...
QUESTION 1: Nine randomly selected customers at a local fast-food restaurant ordered meals having the following...
QUESTION 1: Nine randomly selected customers at a local fast-food restaurant ordered meals having the following calorie counts: 975, 520, 1560, 872, 1028, 533, 362, 954, and 1016. Let y denote the calorie content of a meal ordered at this restaurant. Find the following sum. ∑y2= Enter your answer in accordance to the question statement. QUESTION 2: The following data give the time (in minutes) that each of 20 students waited in line at their bookstore to pay for their...
Question 1: Wendy's Happy Homes Inc manufactures Home Appliances. Monthly sales of Wendy's Washer...
this is a really long assignment and I need help
Question 1: Wendy's Happy Homes Inc manufactures Home Appliances. Monthly sales of Wendy's Washers and Dryer Sets for a nine month period were as follows: MONTH Washer and Dryer Sales 490 480 450 500 480 470 490 520 530 January February March April May June July August September Forecast October sales using 1) A four-month moving average 2) a six-month moving average 3. Compute the MAD for each forecast method...
1/ Consider the following table. Defects in batch Probability 2 0.18 3 0.29 4 0.18 5...
1/ Consider the following table. Defects in batch Probability 2 0.18 3 0.29 4 0.18 5 0.14 6 0.11 7 0.10 Find the standard deviation of this variable. 1.52 4.01 1.58 2.49 2/ The standard deviation of samples from supplier A is 0.0841, while the standard deviation of samples from supplier B is 0.0926. Which supplier would you be likely to choose based on these data and why? Supplier B, as their standard deviation is higher and, thus, easier to...
Question 1: Wendy's Happy Homes Inc manufactures Home Appliances. Monthly sales of Wendy's Washer...
Question 1: Wendy's Happy Homes Inc manufactures Home Appliances. Monthly sales of Wendy's Washers and Dryer Sets for a nine month period were as follows: MONTH Washer and Dryer Sales 490 480 450 500 480 470 490 520 530 January February March April May June July August September Forecast October sales using 1) A four-month moving average 2) a six-month moving average 3. Compute the MAD for each forecast method you used Actual October sales were 320 nits. 4) Which...
1. A group of 24 participants (12 with knee injuries and 12 without) were randomly selected...
1. A group of 24 participants (12 with knee injuries and 12
without) were randomly selected to participate in a study to
investigate balance between those with knee injuries and those
without. Each participant was asked to perform a “Y Balance Test”
in which they stand on a leg in the squat position (in the case of
the knee injury group the participants stood on their injured leg)
while reaching their other leg out as far as possible in each...
Question 1 Snowfalls occur randomly and independently over the course of winter in a Nebraska...
Question 1 Snowfalls occur randomly and independently over the course of winter in a Nebraska city. The average is one snowfall every 3 days. a) What is the probability of 5 snowfalls in 2 weeks? Carry answer to the nearest ten-thousandths b) What is the probability of a snowfall today? Carry answer to the nearest ten-thousandths Question 2 After observing the number of children checking out books, a librarian estimated the following probability distribution of x,...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male t...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male teachers. She picks a random sample by picking a random sample of schools, in the schools picked, picking a random sample of departments, and in the departments picked, picking a random sample of teachers. What kind of sampling was performed? d) voluntary response e) cluster b) stratified Random...
ath 131-Statistics Spring 2019 Linked Marjana Aktar & I 1/20/19 5 1 Frequency Distributions for Organizing...
ath 131-Statistics Spring 2019 Linked Marjana Aktar & I 1/20/19 5 1 Frequency Distributions for Organizing and Summarizing Data 2.1.15 represents the daily raintall (in inches) for one 0230 0445 The data Construct a frequency distribution beginning with a lower class limit 0 31 of 0.00 and use a class width of 0 20. Does the frequency distribution appear to be roughly a normall distribution 1 27 0.16 15 0 140 0.160550 o 01 002 024 0 14 Daily Rainta...
Riverdale Hospital is concerned over the number of times
patients must wait more than 30 minutes beyond their scheduled
appointments. The quality team decided to take random samples of 75
patients to see how many in each sample had to wait more than 30
minutes. Each instance is considered a defect in the clinic
process. The table below contains the data for 15 samples.
Sample
Number of defects
1
5
2
2
3
1
4
3
5
1
6
5...
this is a really long assignment and I need help
Question 1: Wendy's Happy Homes Inc manufactures Home Appliances. Monthly sales of Wendy's Washers and Dryer Sets for a nine month period were as follows: MONTH Washer and Dryer Sales 490 480 450 500 480 470 490 520 530 January February March April May June July August September Forecast October sales using 1) A four-month moving average 2) a six-month moving average 3. Compute the MAD for each forecast method...
Question 1: Wendy's Happy Homes Inc manufactures Home Appliances. Monthly sales of Wendy's Washers and Dryer Sets for a nine month period were as follows: MONTH Washer and Dryer Sales 490 480 450 500 480 470 490 520 530 January February March April May June July August September Forecast October sales using 1) A four-month moving average 2) a six-month moving average 3. Compute the MAD for each forecast method you used Actual October sales were 320 nits. 4) Which...
1. A group of 24 participants (12 with knee injuries and 12
without) were randomly selected to participate in a study to
investigate balance between those with knee injuries and those
without. Each participant was asked to perform a “Y Balance Test”
in which they stand on a leg in the squat position (in the case of
the knee injury group the participants stood on their injured leg)
while reaching their other leg out as far as possible in each...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male teachers. She picks a random sample by picking a random sample of schools, in the schools picked, picking a random sample of departments, and in the departments picked, picking a random sample of teachers. What kind of sampling was performed? d) voluntary response e) cluster b) stratified Random...
ath 131-Statistics Spring 2019 Linked Marjana Aktar & I 1/20/19 5 1 Frequency Distributions for Organizing and Summarizing Data 2.1.15 represents the daily raintall (in inches) for one 0230 0445 The data Construct a frequency distribution beginning with a lower class limit 0 31 of 0.00 and use a class width of 0 20. Does the frequency distribution appear to be roughly a normall distribution 1 27 0.16 15 0 140 0.160550 o 01 002 024 0 14 Daily Rainta...
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