A sample is selected from a normal population with u- 50 and o- 12. Which of the following samples wauld be considered extreme andunrepresentative for this population?O M-53 arid n-16OM- 56 and n4O M-53 and n 4O M- 56 and n- 16

Name: A sample is selected from a normal population with u- 50 and o- 12. W
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: A sample is selected from a normal population with u- 50 and o- 12. Which of the following samples wauld be considered extreme andunrepresentative for this population?O M-53 arid n-16OM- 56 and n4O M-53 and n 4O M- 56 and n- 16

Answered: Image /qna-images/answer/279137fb-8c69-4e54-bada-022a63584466.jpg

Math

Statistics

A sample is selected from a normal population with u- 50 and o- 12. Which of the following samples would be considered extreme and unrepresentative for this population? OM-53 arid n- 16 OM-56 andn4 OM-53 andn4 O M-56 andn 16

A sample is selected from a normal population with u- 50 and o- 12. Which of the following samples would be considered extreme and unrepresentative for this population? OM-53 arid n- 16 OM-56 andn4 OM-53 andn4 O M-56 andn 16

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A random sample of n1 = 16 communities in western Kansas gave the following information for people under 25 years of age. x1: Rate of hay fever per 1000 population for people under 25 100 92 119 127 94 123 112 93 125 95 125 117 97 122 127 88 A random sample of n2 = 14 regions in western Kansas gave the following information for people over 50 years old. x2: Rate of hay fever per 1000 population for people over 50 94 109 100 97 111 88 110 79 115 100 89 114 85 96 (i) Use a calculator to calculate x1, s1, x2, and s2. (Round your answers to two decimal places.) x1 = s1 = x2 = s2 = (ii) Assume that the hay fever rate in each age group has an approximately normal distribution. Do the data indicate that the age group over 50 has a lower rate of hay fever? Use α = 0.05.(a) What is the level of significance? What is the value of the sample test statistic? (Test the difference μ1 − μ2. Round your answer to three decimal places.
We want to assess three new medicines (FluGone, SneezAb, and Fevir) for the flu, Whích of the following could NOT be a block in this study? FluGone Age of patients Gender of patients Severity of adverse reaction A scientist who has collected univariate data should use a scatterplot to graph the data. True False Which of the follow are NOT conditions for a two-sample t-test? O Samples must be obtained using simple random sampling Samples are dependent Variable of measure is categorical Variable distribution is approximately normal 2 points 0000 O000
A toll collector wonders if drivers are equally likely to choose each of the three lanes at his toll booth. He selects a random sample of 465 drivers that approach the booth when all three lanes are empty, so that the driver's choice isn't influenced by the cars already at the booth. The table below summarizes the data: Lane Left Center Right Number of drivers 137 159 169 Which of the following is an appropriate alternative hypothesis for addressing this question? Drivers are not equally likely to choose each of the three lanes O The observed number of drivers choosing each lane is equal. The observed number of drivers choosing each lane is different from the expected numbers. The proportion of drivers choosing each of the three lanes are equal. O The proportion of drivers choosing each of the three lanes are all different.
A professor collected data from classes to see whether humans made selections randomly, as a random number generator would. Each of 36 students had to pick an integer from one to five. The data are summarized in the table below. A true random number generator would create roughly equal numbers of all five integers. Do a goodness-of-fit analysis to test the hypothesis that humans are not like random number generators. Use a significance level of a = 0.05, and assume these data were from a random sample of students. Click the icon to view the integer selection data. n Q A 1 Step 1: Hypothesize Ho: Humans are like random number generators and produce numbers in equal quantities. State the alternative hypothesis. Choose the correct answer below. @ HEF 2 W Z Since each expected count is, the condition that all the expected counts are 5 or more (Simplify your answer.) Step 3: Compute to Compare An incomplete calculation of the chi-square statistic is shown below. Calculate the chi-square…
An airline operates a call center to handle customer questions and complaints. The airline monitors a sample of calls to help ensure that the service being provided is of high quality. Ten random samples of 100 calls each were monitored under normal conditions. The center can be thought of as being in control when these 10 samples were taken. The number of calls in each sample not resulting in a satisfactory resolution for the customer is as follows. 4 5 3 2 3 3 4 7 4 8 (a) What is an estimate of the proportion of calls not resulting in a satisfactory outcome for the customer when the center is in control? (b) Construct the upper and lower limits for a p chart for the manufacturing process, assuming each sample has 100 calls. (Round your answers to four decimal places.) UCL= LCL= (c) With the results of part (b), what conclusion should be made if a sample of 100 has 12 calls not resulting in a satisfactory resolution for the customer? Since p =____ is (within or…
An airline operates a call center to handle customer questions and complaints. The airline monitors a sample of calls to help ensure that the service being provided is of high quality. Ten random samples of 100 calls each were monitored under normal conditions. The center can be thought of as being in control when these 10 samples were taken. The number of calls in each sample not resulting in a satisfactory resolution for the customer is as follows. 4 5 3 2 3 3 4 6 4 8 (a) What is an estimate of the proportion of calls not resulting in a satisfactory outcome for the customer when the center is in control? (b) Construct the upper and lower limits for a p chart for the manufacturing process, assuming each sample has 100 calls. (Round your answers to four decimal places.) UCL - LCL = (c) With the results of part (b), what conclusion should be made if a sample of 100 has 13 calls not resulting in a satisfactory resolution for the customer? Since the sample proportion = is --Select- |the…
An airline operates a call center to handle customer questions and complaints. The airline monitors a sample of calls to help ensure that the service being provided is of high quality. Ten random samples of 100 calls each were monitored under normal conditions. The center can be thought of as being in control when these 10 samples were taken. The number of calls in each sample not resulting in a satisfactory resolution for the customer is as follows. 4 5 3 2 3 3 46 4 8 (a) What is an estimate of the proportion of calls not resulting in a satisfactory outcome for the customer when the center i in control? 0.0042 (b) Construct the upper and lower limits for a p chart for the manufacturing process, assuming each sample has 100 calls. (Round your answers to four decimal places.) UCL = 0.0655 LCL = 0.0558 (c) With the results of part (b), what conclusion should be made if a sample of 100 has 13 calls not resulting in a satisfactory resolution for the customer? Since the sample proportion =…
A test is being designed to compare the wearing quality of two brands of tyres. Six cars were randomly selected, equipped with one tyre of brand A and one tyre of brand B (the other two tyres are not part of the test) and driven for one month. The Table below gives the amount of wear (in thousands of an inch) that took place in such a test. Car Tyre brand 1 2 4 5 A 125 64 94 38 90 В 133 65 103 37 102 Do the sample data and provide sufficient evidence for us to conclude that the two brands show unequal wear at 5% level of significance
Another disease. Suppose a test for a disease has a sensitivity of 75% and a specificity of 85%. Further suppose that in a certain country with a population of 1,000,000, 20% of the population has the disease. a. Fill in the accompanying table. Does not have Has disease disease Totals Test positive Test negative Totals b. What are the PPV and NPV of this test for this country?
To compare the effects of four different chemicals in producing water restance in textiles, a strip of material randomply selected from a bolf of chemical was cut ito four pieces were randomply assigned to receive an application of one of the chemicals A, B, C, or D. Low readings indicate low moisture penetration. Refer to the table below. Is there a significant difference among the four chemicals? State the null hypothesis. Bolt Samples 2 3 Chemical 10.1 12.2 11.9 A Chemical 11.4 12.9 12.7 В Chemical 9.9 12.3 11.4 C Chemical 12.1 13.4 12.9 O a. There is no significant difference among the four chemicals. O b There is a significant difference among the four chemicals.
A random sample of n1 = 16 communities in western Kansas gave the following information for people under 25 years of age. x1: Rate of hay fever per 1000 population for people under 25 100 92 122 127 93 123 112 93 125 95 125 117 97 122 127 88 A random sample of n2 = 14 regions in western Kansas gave the following information for people over 50 years old. x2: Rate of hay fever per 1000 population for people over 50 93 112 100 97 111 88 110 79 115 100 89 114 85 96 State the null and alternate hypotheses. H0: ?1 = ?2; H1: ?1 ≠ ?2 H0: ?1 > ?2; H1: ?1 = ?2 H0: ?1 = ?2; H1: ?1 > ?2 H0: ?1 = ?2; H1: ?1 < ?2 What sampling distribution will you use? What assumptions are you making? The standard normal. We assume that both population distributions are approximately normal with known standard deviations. The Student's t. We assume that both population distributions are approximately normal with known standard deviations. The Student's t. We assume that…
p3