help on finding the sample standard veviation.
Homework Answers
From the given data
Answers:
i) Sample mean Xbar = 2.5
ii) Sample SD (s) = 1.3
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help on finding the sample standard veviation.
save Homework: 2.4 Measures of Variation ome Score: 0.5...
Homework: Section 2.4 Measures of Variation Saver 16 of 18 (17 complete) HW Score: 64.81 %,...
Homework: Section 2.4 Measures of Variation Saver 16 of 18 (17 complete) HW Score: 64.81 %, 11.67 of 18 pts Score: 0 of 1 pt X 2.4.36 Question Help From a sample with n 36, the mean duration of a geyser's eruptions is 3.86 minutes and the standard deviation is 1.28 minutes. Using Chebychev's Theorem, detemine at least how many of the enuptiens lasted betwen 0.02 and 7.7 minutes of the enuptions lasted between 0.02 and 7.7 minutes At least...
Save Score: 0.5 of 1 pt 2 of 15 (15 complete) HW Score: 70%, 14 of...
Save Score: 0.5 of 1 pt 2 of 15 (15 complete) HW Score: 70%, 14 of 20 pts 6.2.7 E estion Help An orthodontist has three financing packages, and each has a different service charge. He estimates that 10% of patients use the first plan which has a $10 franche: 40% use the second plan which has a $20 finance charge and 50% use the third plan which has a $30 finance charge. Complete parts and a) Find the expected...
Homework: Sec. 5.4 Save core: 0 of 1 pt 6 of 8 (5 complete) HW Score:...
Homework: Sec. 5.4 Save core: 0 of 1 pt 6 of 8 (5 complete) HW Score: 58.3... 5.4.25 : Question Help The annual salary for one particular occupation is normally distributed, with a mean of about $139,000 and a standard deviation of about $16,000. Random samples of 38 are drawn from this population, and the mean of each sample is determined. Find the mean and standard deviation of the sampling distribution of these sample means. Then, sketch a graph of...
Johnson -STA 220- LBT 5521- Fall 2019 Homework: Section 7-3 Homework Save Score: 0 of 1...
Johnson -STA 220- LBT 5521- Fall 2019 Homework: Section 7-3 Homework Save Score: 0 of 1 pt 1 of 19 (10 complete) HW Score: 56%, 14 of 25 pts 7.3.9-T Assigned Media Question Help Use technology and the given confidence level and sample data to find the confidence interval for the population mean Assume that the population does not exhibit a normal distribution. Weight lost on a diet 99% confidence x-2.0 kg s 4.5 kg n 41 What is the...
Homework: Section 2.4 -2.5 Score: 0 of 1 pt 10 of 22 (9 complete) 2.4.50 Sample...
Homework: Section 2.4 -2.5 Score: 0 of 1 pt 10 of 22 (9 complete) 2.4.50 Sample grade point averages for ten male students and ten female students are listed. Find the coefficient of variation for each Males 2.5 3.7 3.6 3.9 2.6 3.3 3.8 1.9 D Females 2.9 3.6 2.1 3.8 3.4 3.9 3.9 3.8 2.3 The coefficient of variation for males is % (Round to one decimal place as needed.)
Homework: Homework #6 Save Score: 0 of 1 pt 33 of 50 (23 complete) w score:...
Homework: Homework #6 Save Score: 0 of 1 pt 33 of 50 (23 complete) w score: 41%, 205 of 6.4.6-T Question Help The overhead reach distances of adult females are normally distributed with a mean of 205 cm and a standard deviation of 8.6 cm a. Find the probability that an individual distance is greater than 217.50 cm. b. Find the probability that the mean for 15 randomly selected distances is greater than 202.80 cm. c. Why can the normal...
please find the test statistic and p value Homework: Section 8.2 Homework Save Score: 0.67 of...
please find the test statistic and p value
Homework: Section 8.2 Homework Save Score: 0.67 of 1 pt 4 of 8 (8 complete) HW Score: 56%6, 5.6 of 10 pts 8.2.13-T Assigned Media Question Help A pet association claims that the mean annual cost of food for dogs and cats are the same. The results for samples for the two types of pets are shown below. At a "0.05, can you reject the pet association's daim? Assume the population variances...
Find the sample variance and standard deviation : 7 11 23 28 29 30 31 38...
Find the sample variance and standard deviation : 7 11 23 28 29
30 31 38 51 55
Here is what I keep getting:
What am I doing wrong?
Homework: Section 3.2 Save Score: 0.5 of 1 pt 2 of 9 (2 complete) HW Score: 16.67%, 1.5 of 9 pts 3.2.9 Question Help Find the sample variance and standard deviation 7, 55, 11, 51,38, 23,29, 31, 30, 28 Choose the correct answer below. Fill in the answer box to complete...
Homework: HW Section 6.5 (must earn 90% to earn 10 points) Save Score: 0.5 of 1 pt 9 of 11 (11 complete) ▼ HW Score: 95.45%, 10.5 of 11 pts Question Help 6.5.32 Find the surface area and the volume o...
Homework: HW Section 6.5 (must earn 90% to earn 10 points) Save Score: 0.5 of 1 pt 9 of 11 (11 complete) ▼ HW Score: 95.45%, 10.5 of 11 pts Question Help 6.5.32 Find the surface area and the volume of the cement block in the figure shown. What is the surface area of the cement block? in 956 in.2 6 in 5 in. What is the volume of the cement block? iin. 8 in 23 in Enter your answer...
Homework: Section 5.4 Homework Save Score: 0 of 1 pt 9 of 9 (9 complete) HW...
Homework: Section 5.4 Homework Save Score: 0 of 1 pt 9 of 9 (9 complete) HW Score: 88.89%, 8 of 9 pts 5.4.31-T Question Help The mean percent of childhood asthma prevalence in 43 cties is 2.42%. A random sample of 32 of these cities is selected childhood asthma prevalence for the sample is greater than 2.8%? Interpret this probability. Assume that . 140% hat is the probability that the mean The probability is (Round to four decimal places as...
Homework: Section 2.4 Measures of Variation Saver 16 of 18 (17 complete) HW Score: 64.81 %, 11.67 of 18 pts Score: 0 of 1 pt X 2.4.36 Question Help From a sample with n 36, the mean duration of a geyser's eruptions is 3.86 minutes and the standard deviation is 1.28 minutes. Using Chebychev's Theorem, detemine at least how many of the enuptiens lasted betwen 0.02 and 7.7 minutes of the enuptions lasted between 0.02 and 7.7 minutes At least...
Save Score: 0.5 of 1 pt 2 of 15 (15 complete) HW Score: 70%, 14 of 20 pts 6.2.7 E estion Help An orthodontist has three financing packages, and each has a different service charge. He estimates that 10% of patients use the first plan which has a $10 franche: 40% use the second plan which has a $20 finance charge and 50% use the third plan which has a $30 finance charge. Complete parts and a) Find the expected...
Homework: Sec. 5.4 Save core: 0 of 1 pt 6 of 8 (5 complete) HW Score: 58.3... 5.4.25 : Question Help The annual salary for one particular occupation is normally distributed, with a mean of about $139,000 and a standard deviation of about $16,000. Random samples of 38 are drawn from this population, and the mean of each sample is determined. Find the mean and standard deviation of the sampling distribution of these sample means. Then, sketch a graph of...
Johnson -STA 220- LBT 5521- Fall 2019 Homework: Section 7-3 Homework Save Score: 0 of 1 pt 1 of 19 (10 complete) HW Score: 56%, 14 of 25 pts 7.3.9-T Assigned Media Question Help Use technology and the given confidence level and sample data to find the confidence interval for the population mean Assume that the population does not exhibit a normal distribution. Weight lost on a diet 99% confidence x-2.0 kg s 4.5 kg n 41 What is the...
Homework: Section 2.4 -2.5 Score: 0 of 1 pt 10 of 22 (9 complete) 2.4.50 Sample grade point averages for ten male students and ten female students are listed. Find the coefficient of variation for each Males 2.5 3.7 3.6 3.9 2.6 3.3 3.8 1.9 D Females 2.9 3.6 2.1 3.8 3.4 3.9 3.9 3.8 2.3 The coefficient of variation for males is % (Round to one decimal place as needed.)
Homework: Homework #6 Save Score: 0 of 1 pt 33 of 50 (23 complete) w score: 41%, 205 of 6.4.6-T Question Help The overhead reach distances of adult females are normally distributed with a mean of 205 cm and a standard deviation of 8.6 cm a. Find the probability that an individual distance is greater than 217.50 cm. b. Find the probability that the mean for 15 randomly selected distances is greater than 202.80 cm. c. Why can the normal...
please find the test statistic and p value
Homework: Section 8.2 Homework Save Score: 0.67 of 1 pt 4 of 8 (8 complete) HW Score: 56%6, 5.6 of 10 pts 8.2.13-T Assigned Media Question Help A pet association claims that the mean annual cost of food for dogs and cats are the same. The results for samples for the two types of pets are shown below. At a "0.05, can you reject the pet association's daim? Assume the population variances...
Find the sample variance and standard deviation : 7 11 23 28 29
30 31 38 51 55
Here is what I keep getting:
What am I doing wrong?
Homework: Section 3.2 Save Score: 0.5 of 1 pt 2 of 9 (2 complete) HW Score: 16.67%, 1.5 of 9 pts 3.2.9 Question Help Find the sample variance and standard deviation 7, 55, 11, 51,38, 23,29, 31, 30, 28 Choose the correct answer below. Fill in the answer box to complete...
Homework: HW Section 6.5 (must earn 90% to earn 10 points) Save Score: 0.5 of 1 pt 9 of 11 (11 complete) ▼ HW Score: 95.45%, 10.5 of 11 pts Question Help 6.5.32 Find the surface area and the volume of the cement block in the figure shown. What is the surface area of the cement block? in 956 in.2 6 in 5 in. What is the volume of the cement block? iin. 8 in 23 in Enter your answer...
Homework: Section 5.4 Homework Save Score: 0 of 1 pt 9 of 9 (9 complete) HW Score: 88.89%, 8 of 9 pts 5.4.31-T Question Help The mean percent of childhood asthma prevalence in 43 cties is 2.42%. A random sample of 32 of these cities is selected childhood asthma prevalence for the sample is greater than 2.8%? Interpret this probability. Assume that . 140% hat is the probability that the mean The probability is (Round to four decimal places as...
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