Since everyone is staying at home, a study was done on how much time Americans are...
Since everyone is staying at home, a study was done on how much time Americans are spending on the internet. The study showed that the mean time people are spending on the internet per day is 5.1 hours with a standard deviation of 1.9 hours. A random sample of 65 Americans is taken. Describe the sampling distribution of the sample mean.
Group of answer choices
shape: approximately normal
μx¯=5.1
σx¯= 0.24
shape: exactly normal
μx¯=5.1
σx¯= 0.24
shape: approximately normal
μx¯=5.1
σx¯= 1.9
shape: exactly normal
μx¯=5.1
σx¯= 1.9
Homework Answers
Add Answer to:
Since everyone is staying at home, a study was done on how much
time Americans are...
all answers please 3. The teachers union is concerned about the amount of time teachers spend...
all answers please
3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
A nutritionis wants to determine how much time onally people spend eating and drinking Suppose for...
A nutritionis wants to determine how much time onally people spend eating and drinking Suppose for a random sample of 913 people age 15 or older the mean amount of time spent eating or drinking per day is 174 hours wit a standard deviation of 65 hour Complete parts (al through (d) below. (a) A histogram of time sport eating and drinking each day is skewed Use this result to explain why a large sample size is needed to construct...
A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for...
A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 1069 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.36 hours with a standard deviation of 0.67 hour. a) A histogram of time spent eating and drinking each day is skewed right. Use this result to explain why a large sample size is needed to construct a confidence interval for the...
A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for...
A nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 982982 people age 15 or older, the mean amount of time spent eating or drinking per day is 1.181.18 hours with a standard deviation of 0.550.55 hour. Complete parts (a) through (d) below. (a) A histogram of time spent eating and drinking each day is skewed right. Use this result to explain why a large sample size is needed to...
The amount of time adults spend watching television is closely monitored by firms because this helps...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable weekly time spent watching television would be normaly distributed? If not, what shape would you expect the variable to have? O A The variable weekly time spent watching television is likely normally distributed OB. The variable weekly time spent watching television is kely skewed right not normally...
please show wll work 4. [20 Points! The time required for an automotive center to complete...
please show wll work
4. [20 Points! The time required for an automotive center to complete an oil change service on an automobile approximately follows a normal distribution, with a mean of 17 minutes and a standard deviation of 2 minutes. (a) The automotive center guarantees customers that the service will take no longer than 20 minutes. If it does take longer, the customer will receive the service for hall.price. What percent of customers receive the service for half-price? (b)...
This The amount of time adults spend watching television is closely monitored by firms because this...
This The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable weekly time spent watching television would be normally distributed? If not, what shape would you expect the 1.525 variable to have? 1.525+ he com OA. The variable weekly time spent watching television is likely symmetric, but not normally distributed. OB. The variable weekly time spent watching...
all answers please!! 1. A company that produces brendis concerned about the distribution of the amount of sodiu...
all answers please!!
1. A company that produces brendis concerned about the distribution of the amount of sodium in its bread. The company takes a simple random sample of 100 slices of bread and compute the sample mean to be 103 milligrams of sodium per slice. Assume that the population standard deviation is 10 milligrams a) Construct a 95% confidence interval estimate for the mean sedium level. b) Construct a 99% confidence intervalestime for the mean sodium level. 2. Fill...
Question 16 (5 points) Saved Opinion polls find that 20% of Americans adults claim that they...
Question 16 (5 points) Saved Opinion polls find that 20% of Americans adults claim that they don't get enough sleep. Suppose you take a random sample of 20 American adults and count the number of individuals in your sample who claim that they never have time to relax. Based on this information, match the following probabilities. 1. What is the probability that at least 8 out of 20 American adults don't get enough sleep? 0.968 0.055 2. What is the...
10. The Beck & Watson article is a Group of answer choices quantitative study qualitative study...
10. The Beck & Watson article is a
Group of answer choices
quantitative study
qualitative study
11. Beck & Watson examined participants' experiences and
perceptions using what type of research design?
Group of answer choices
particpant obersvation
phenomenology
12. Select the participants in the Beck & Watson study
Group of answer choices
Caucasian women with 2-4 children
Caucasian pregnant women
13. In the Beck & Watson study, data was collected via
a(n)
Group of answer choices
internet study
focus group...
all answers please
3. The teachers union is concerned about the amount of time teachers spend each week doing schoolwork at home. A simple random sample of 56 teachers had a mean of 8.0 hours per week working at home after school. Assume that the population standard deviation is 1.5 hours per week. a) Construct a 95% confidence interval estimate for the mean number of hours per week a teacher spends working at home. b) Does the confidence interval support...
A nutritionis wants to determine how much time onally people spend eating and drinking Suppose for a random sample of 913 people age 15 or older the mean amount of time spent eating or drinking per day is 174 hours wit a standard deviation of 65 hour Complete parts (al through (d) below. (a) A histogram of time sport eating and drinking each day is skewed Use this result to explain why a large sample size is needed to construct...
The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable weekly time spent watching television would be normaly distributed? If not, what shape would you expect the variable to have? O A The variable weekly time spent watching television is likely normally distributed OB. The variable weekly time spent watching television is kely skewed right not normally...
please show wll work
4. [20 Points! The time required for an automotive center to complete an oil change service on an automobile approximately follows a normal distribution, with a mean of 17 minutes and a standard deviation of 2 minutes. (a) The automotive center guarantees customers that the service will take no longer than 20 minutes. If it does take longer, the customer will receive the service for hall.price. What percent of customers receive the service for half-price? (b)...
This The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable weekly time spent watching television would be normally distributed? If not, what shape would you expect the 1.525 variable to have? 1.525+ he com OA. The variable weekly time spent watching television is likely symmetric, but not normally distributed. OB. The variable weekly time spent watching...
all answers please!!
1. A company that produces brendis concerned about the distribution of the amount of sodium in its bread. The company takes a simple random sample of 100 slices of bread and compute the sample mean to be 103 milligrams of sodium per slice. Assume that the population standard deviation is 10 milligrams a) Construct a 95% confidence interval estimate for the mean sedium level. b) Construct a 99% confidence intervalestime for the mean sodium level. 2. Fill...
Question 16 (5 points) Saved Opinion polls find that 20% of Americans adults claim that they don't get enough sleep. Suppose you take a random sample of 20 American adults and count the number of individuals in your sample who claim that they never have time to relax. Based on this information, match the following probabilities. 1. What is the probability that at least 8 out of 20 American adults don't get enough sleep? 0.968 0.055 2. What is the...
10. The Beck & Watson article is a
Group of answer choices
quantitative study
qualitative study
11. Beck & Watson examined participants' experiences and
perceptions using what type of research design?
Group of answer choices
particpant obersvation
phenomenology
12. Select the participants in the Beck & Watson study
Group of answer choices
Caucasian women with 2-4 children
Caucasian pregnant women
13. In the Beck & Watson study, data was collected via
a(n)
Group of answer choices
internet study
focus group...
Most questions answered within 3 hours.
-
What taboo subject did Ida B. Wells suggest was consensual
between black men and white women?...
asked 1 hour ago -
You have just been hired by the EPA to help with the new gas
mileage standards...
asked 2 hours ago -
4) A firm is hit by increases in its wage rate, w.
a) How does this...
asked 2 hours ago -
A square current loop 5.4 cm on each side carries a 510 mA
current. The loop...
asked 4 hours ago -
What are five tips in conducting knowledge assessment/literature
review research? Each of these tips needs to...
asked 5 hours ago -
Antigen presenting cells link innate and adaptive immune
responses. In the theoretical scenario where phagosomes cannot...
asked 5 hours ago -
Dealing with conflict, in my opinion, is a skill and an art. I
believe that those...
asked 5 hours ago -
6. A long straight wire with circular cross section and radius
1.5 cm carries a 1.2...
asked 5 hours ago -
Deacon Corporation has provided the following financial data
from its balance sheet and income statement:
Year...
asked 6 hours ago -
List and discuss at least three variables from everyday life for
which you expect the variable ...
asked 6 hours ago -
A high-pass filter consists of a 1.60 μF capacitor in series
with a 125 Ω resistor....
asked 6 hours ago -
A newly developed artificial intelligence has trouble
distinguishing hand-written numbers from hand-written alphabets.
There are pictures...
asked 7 hours ago