Question

Write the null and alternative hypotheses. Identify which is the claim. A light bulb manufacturer claims...

Write the null and alternative hypotheses. Identify which is the claim. A light bulb manufacturer claims that the mean life of a certain type of light bulb is more thanmore than 725725 hours. Choose the correct null and alternative hypotheses below. A. Upper H 0H0​: muμgreater than>725725 Upper H Subscript aHa​: muμless than or equals≤725725 B. Upper H 0H0​: muμless than or equals≤725725 Upper H Subscript aHa​: muμgreater than>725725 C. Upper H 0H0​: muμgreater than or equals≥725725 Upper H Subscript aHa​: muμless than<725725 D. Upper H 0H0​: muμequals=725725 Upper H Subscript aHa​: muμnot equals≠725725 E. Upper H 0H0​: muμnot equals≠725725 Upper H Subscript aHa​: muμequals=725725 F. Upper H 0H0​: muμless than<725725 Upper H Subscript aHa​: muμgreater than or equals≥725

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Write the null and alternative hypotheses. Identify which is the claim.

The null and alternative hypotheses are given as below:

Null hypothesis: H0: The mean life of a certain type of light bulb is less than or equal to 725 hours.

Alternative hypothesis: Ha: The mean life of a certain type of light bulb is more than 725 hours.

H0: µ ≤ 725

Ha: µ > 725

Correct answer is B.

The claim is an alternative hypothesis; because alternative hypothesis explains that the mean life of a certain type of light bulb is more than 725 hours.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A company claims that the mean monthly residential electricity consumption in a certain region is more...
A company claims that the mean monthly residential electricity consumption in a certain region is more than 870870 ​kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 7070 residential customers has a mean monthly consumption of 900900 kWh. Assume the population standard deviation is 120120 kWh. At alphaαequals=0.050.05​, can you support the​ claim? Complete parts​ (a) through​(e). ​(a) Identify Upper H 0H0 and Upper H Subscript aHa. Choose the correct answer below. A. Upper...
The lengths of time​ (in years) it took a random sample of 3232 former smokers to...
The lengths of time​ (in years) it took a random sample of 3232 former smokers to quit smoking permanently are listed. Assume the population standard deviation is 6.96.9 years. At alphaαequals=0.020.02​, is there enough evidence to reject the claim that the mean time it takes smokers to quit smoking permanently is 1414 ​years? Complete parts​ (a) through​ (e). 10.810.8 19.519.5 8.18.1 17.117.1 20.320.3 13.613.6 8.68.6 16.516.5 20.320.3 7.77.7 20.720.7 13.713.7 16.716.7 21.221.2 15.615.6 8.38.3 16.716.7 21.921.9 22.422.4 12.212.2 18.418.4 17.917.9...
The dean of a university estimates that the mean number of classroom hours per week for​...
The dean of a university estimates that the mean number of classroom hours per week for​ full-time faculty is 11.011.0. As a member of the student​ council, you want to test this claim. A random sample of the number of classroom hours for eight​ full-time faculty for one week is shown in the table below. At alphaαequals=0.100.10​, can you reject the​ dean's claim? Complete parts​ (a) through​ (d) below. Assume the population is normally distributed. 10.810.8 9.49.4 12.712.7 6.16.1 4.94.9...
A data set lists earthquake depths. The summary statistics are nequals=400​, x overbarxequals=5.45 ​km, sequals=4.65 km....
A data set lists earthquake depths. The summary statistics are nequals=400​, x overbarxequals=5.45 ​km, sequals=4.65 km. Use a 0.01 significance level to test the claim of a seismologist that these earthquakes are from a population with a mean equal to 5.00. Assume that a simple random sample has been selected. Identify the null and alternative​hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative​ hypotheses? A. Upper H 0H0​: muμequals=5.00...
A data set about speed dating includes​ "like" ratings of male dates made by the female...
A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The summary statistics are nequals=197197​, x overbarxequals=5.845.84​, sequals=1.921.92. Use a 0.010.01 significance level to test the claim that the population mean of such ratings is less than 6.006.00. Assume that a simple random sample has been selected. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative​ hypotheses?...
Researchers investigated the physiological changes that accompany laughter. Ninety subjects (18-34 years old) watched film clips...
Researchers investigated the physiological changes that accompany laughter. Ninety subjects (18-34 years old) watched film clips designed to evoke laughter. During the laughing period, the researchers measured the heart rate (beats per minute) of each subject, with the following summary results: x overbarxequals=73.273.2 , sequals=55. It is well known that the mean resting heart rate of adults is 7171 beats per minute. Complete parts a through d below. a. Set up Upper H 0H0 and Upper H Subscript aHa for...
A data set about speed dating includes​ "like" ratings of male dates made by the female...
A data set about speed dating includes​ "like" ratings of male dates made by the female dates. The summary statistics are nequals=189189​, x overbarxequals=6.596.59​, sequals=1.861.86. Use a 0.050.05 significance level to test the claim that the population mean of such ratings is less than 7.007.00. Assume that a simple random sample has been selected. Identify the null and alternative​ hypotheses, test​ statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative​ hypotheses?...
For the statement? below, write the claim as a mathematical statement. State the null and alternative...
For the statement? below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. A company claims that its brands of paint have a mean drying time of more than 90 minutes. Write the claim as a mathematical statement. A. mugreater than or equals90 B. muless than90 C. muless than or equals90 D. muequals90 E. munot equals90 F. mugreater than90 Choose the correct null and alternative hypotheses below. A. Upper H...
For the statement​ below, write the claim as a mathematical statement. State the null and alternative...
For the statement​ below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. A company claims that its brands of paint have a mean drying time of more than 30 minutes. Write the claim as a mathematical statement. A. mugreater than30 B. mugreater than or equals30 C. muless than30 D. munot equals30 E. muless than or equals30 F. muequals30 Choose the correct null and alternative hypotheses below. A. Upper H...
For the statement? below, write the claim as a mathematical statement. State the null and alternative...
For the statement? below, write the claim as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim. The standard deviation of the base price of a certain type of? all-terrain vehicle is at least ?$327. a. Write the claim as a mathematical statement. equals327 B. sigmagreater than327 C. sigmaless than or equals327 D. sigmanot equals327 E. sigmagreater than or equals327 F. sigmaless than327 b. Identify the correct null and alternative hypotheses below. . Upper...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT