Homework Answers
Yes, this is significantly different from normal since at 99% confidence interval with only 2 data sets and 0.1sd range would be 92+0.182 to 92-0.182 whereas 70 lies much away from this as sample size would have increase range would have further narrowed down around 92 hence yes, 70 as observation is significantly different than normal
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2 points Save Answer You have a data set with a population average o 92 and...
5 points Save Answer A sample of 25 observations is selected from a normal population where...
5 points Save Answer A sample of 25 observations is selected from a normal population where the population standard deviation is 20. and the sample mean is 120 Calculate the Lower Limit of the 70% confidence interval of the population mean. Reminder: You only need to calculate the Lower Limit of the confidence interval. Moving to the next question prevents changes to this answer Activate Wind Gustion 2016
Please help, this is urgent! A data set includes 103 body temperatures of healthy adult humans...
Please help, this is urgent!
A data set includes 103 body temperatures of healthy adult humans having a mean of 98.5°F and a standard deviation of 0.61". Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view at distribution table. Click here to view page 1 of the star dard normal distribution table. Click here to...
5 Sa The average height of GCU students is 170cm, with a Std. Dev.of 2.5. (population data). The ...
5 Sa The average height of GCU students is 170cm, with a Std. Dev.of 2.5. (population data). The average height of Biology major students is 173cm, with a Std. Dev. of 2.2, and n 25. Is the average height of Biology students significantly different from GCU students? Explain your step by step reasoning about what test (zor t) and what critical value (1/2 tailed) to use. Show your calculations, cite the critical value and explain whether there is a significant...
Use the accompanying data set on the pulse rates (in beats per minute) of males to...
Use the accompanying data set on the pulse rates (in beats per minute) of males to complete parts (a) and (b) below. LOADING... Click the icon to view the pulse rates of males. a. Find the mean and standard deviation, and verify that the pulse rates have a distribution that is roughly normal. The mean of the pulse rates is 71.7 beats per minute. (Round to one decimal place as needed.) The standard deviation of the pulse rates is 12.2...
The following data represent the high-temperature distribution for a summer month in a city for some...
The following data represent the high-temperature distribution for a summer month in a city for some of the last 130 years. Treat the data as a population Complete parts (a) through (c) Temperature 50-59 60-69 70-79 80-89 90-99 100-109 Days 3 310 1412 9 1527 429 (a) Approximate the mean and standard deviation for temperature (Round to one decimal place as needed.) (Round to one decimal place as needed) (b) Use the frequency histogram of the data to verify that...
Question 6 10 points Save Answer Copy of Digitech's stock has an average expected return of...
Question 6 10 points Save Answer Copy of Digitech's stock has an average expected return of 10.15% and a standard deviation of 12.80%. The probability of losing more than 2.65% is closest to: O A. 16% OB.68% O C.32%
Your beat submisnion for each entire question is used for your score O-13 points 0/2 Submissions...
Your beat submisnion for each entire question is used for your score O-13 points 0/2 Submissions Used My Notes Ask Your Teache Application Exercise: Idaho in the U.S. hired an education firm to implement a program to help students in science, technology, engineering, and math (STEM). The following year, the average math SAT portion of a sample of 580 students in Idaho was 515. The national math SAT average is 498 with a standard deviation of 97. State legislators are...
A data set includes 110 body temperatures of healthy adult humans having a mean of 98.0°F...
A data set includes 110 body temperatures of healthy adult humans having a mean of 98.0°F and a standard deviation of 0.74°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view at distribution table. Click here to view.page 1 of the standard normal distribution table. What is the confidence interval estimate of the population mean?...
Question Help A data set includes 109 body temperatures of healthy adult humans having a mean...
Question Help A data set includes 109 body temperatures of healthy adult humans having a mean of 98.2°F and a standard deviation of 0.62°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view at distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of...
QUESTION9 S points Save Answer AMTRAK advertises that their express train to Boston has an average...
QUESTION9 S points Save Answer AMTRAK advertises that their express train to Boston has an average trip time of 3 hours. AMTRAK claims that a new digital signal system that was recently installed will reduce the average trip time. A transportation analyst conducts a study to determine if this claim is true. She checks arrival trip time for a sample of 64 trips and finds that the average trip time was 2.85 hours. It is known that the population standard...
5 points Save Answer A sample of 25 observations is selected from a normal population where the population standard deviation is 20. and the sample mean is 120 Calculate the Lower Limit of the 70% confidence interval of the population mean. Reminder: You only need to calculate the Lower Limit of the confidence interval. Moving to the next question prevents changes to this answer Activate Wind Gustion 2016
Please help, this is urgent!
A data set includes 103 body temperatures of healthy adult humans having a mean of 98.5°F and a standard deviation of 0.61". Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view at distribution table. Click here to view page 1 of the star dard normal distribution table. Click here to...
5 Sa The average height of GCU students is 170cm, with a Std. Dev.of 2.5. (population data). The average height of Biology major students is 173cm, with a Std. Dev. of 2.2, and n 25. Is the average height of Biology students significantly different from GCU students? Explain your step by step reasoning about what test (zor t) and what critical value (1/2 tailed) to use. Show your calculations, cite the critical value and explain whether there is a significant...
The following data represent the high-temperature distribution for a summer month in a city for some of the last 130 years. Treat the data as a population Complete parts (a) through (c) Temperature 50-59 60-69 70-79 80-89 90-99 100-109 Days 3 310 1412 9 1527 429 (a) Approximate the mean and standard deviation for temperature (Round to one decimal place as needed.) (Round to one decimal place as needed) (b) Use the frequency histogram of the data to verify that...
Question 6 10 points Save Answer Copy of Digitech's stock has an average expected return of 10.15% and a standard deviation of 12.80%. The probability of losing more than 2.65% is closest to: O A. 16% OB.68% O C.32%
Your beat submisnion for each entire question is used for your score O-13 points 0/2 Submissions Used My Notes Ask Your Teache Application Exercise: Idaho in the U.S. hired an education firm to implement a program to help students in science, technology, engineering, and math (STEM). The following year, the average math SAT portion of a sample of 580 students in Idaho was 515. The national math SAT average is 498 with a standard deviation of 97. State legislators are...
A data set includes 110 body temperatures of healthy adult humans having a mean of 98.0°F and a standard deviation of 0.74°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view at distribution table. Click here to view.page 1 of the standard normal distribution table. What is the confidence interval estimate of the population mean?...
Question Help A data set includes 109 body temperatures of healthy adult humans having a mean of 98.2°F and a standard deviation of 0.62°F. Construct a 99% confidence interval estimate of the mean body temperature of all healthy humans. What does the sample suggest about the use of 98.6°F as the mean body temperature? Click here to view at distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of...
QUESTION9 S points Save Answer AMTRAK advertises that their express train to Boston has an average trip time of 3 hours. AMTRAK claims that a new digital signal system that was recently installed will reduce the average trip time. A transportation analyst conducts a study to determine if this claim is true. She checks arrival trip time for a sample of 64 trips and finds that the average trip time was 2.85 hours. It is known that the population standard...
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