Question

A local hardware store claims that the mean waiting time in line is less than 3.7...

A local hardware store claims that the mean waiting time in line is less than 3.7 minutes. A random sample of 20 customers has a mean of 3.5 minutes with a standard deviation of 0.8 minute. If α = 0.05, test the bank's claim.

Null:

Alternative:

T=

p-Value=

Choose one: Reject or Fail to Reject

Conclusion in Context:

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

Homework Answers

Answer #1

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 bank claims that the mean waiting time in line is less than 1.7 minutes. A...
A bank claims that the mean waiting time in line is less than 1.7 minutes. A random sample of 20 customers has a mean of 1.5 minutes with a standard deviation of 0.8 minute. If α = 0.05, test the bank's claim using p-values.
A fast food outlet claims that the mean waiting time in line is less than 3.5...
A fast food outlet claims that the mean waiting time in line is less than 3.5 minutes. A random sample of 60 customers has a mean of 3.4 minutes with a standard deviation of 0.6 minute. If α = 0.05, test the fast food outletʹs claim.
A fast food outlet claims that the mean waiting time in line is less than 3.5...
A fast food outlet claims that the mean waiting time in line is less than 3.5 minutes. A random sample of 60 customers has a mean of 3.6 minutes with a population standard deviation of 0.6 minute. Using a significance level of 0.05, test the fast food outlet's claim
A local retailer claims that the mean waiting time is less than 7 minutes. A random...
A local retailer claims that the mean waiting time is less than 7 minutes. A random sample of 20 waiting times has a mean of 5.5 minutes with a standard deviation of 2.1 minutes. At α = 0.01, test the retailer's claim. Assume the distribution is normally distributed. Round the test statistic to the nearest thousandth. a) State the Null and Alternate Hypotheses. b) Is this a left, right or two-tailed test? c) Find the sample test statistic. d) Use...
A local supermarket claims that the waiting time for its customers to be served is the...
A local supermarket claims that the waiting time for its customers to be served is the lowest in the area. Acompetitor's supermarket checks the waiting times at both supermarkets. The sample statistics are listed below.Test the local supermarket's hypothesis. Use΅= 0.05. Local SupermarketCompetitor Supermarket n1= 15       n2= 16 x1= 5.3 minutes   xbar2=5.6 minuets s1= 1.1 minutes    s2= 1.0 minutes A) Hypothises: B) Critical Values tcrutical C) Test statistic tstat and the decision to reject or fail to reject D) The...
A public bus company official claims that the mean waiting time for bus number 14 during...
A public bus company official claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes. Karen took bus number 14 during peak hours on 18 different occasions. Her mean waiting time was 7.9 minutes with sample standard deviation s = 1.5 minutes. At the 0.01 significance level, test the claim that the mean waiting time is less than 10 minutes. a) Write the null and alternative hypotheses. b) Determine the P-value. c)...
A restaurant claims the customers receive their food in less than 16 minutes. A random sample...
A restaurant claims the customers receive their food in less than 16 minutes. A random sample of 39 customers finds a mean wait time for food to be 15.8 minutes with a standard deviation of 4.9 minutes. At α = 0.04, what type of test is this and can you support the organizations’ claim using the test statistic? Claim is the alternative, reject the null so support the claim as test statistic (-0.25) is in the rejection region defined by...
Comcast claims that mean waiting time of customers is 3 minutes with a standard deviation of...
Comcast claims that mean waiting time of customers is 3 minutes with a standard deviation of 1 minute for customer service. A survey completed by an outside firm found in a sample of 50 Comcast customers that the mean waiting time was 2.75 minutes. At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
(CO7) A state Department of Transportation claims that the mean wait time for various services at...
(CO7) A state Department of Transportation claims that the mean wait time for various services at its different location is less than 6 minutes. A random sample of 16 services at different locations has a mean wait time of 9.5 minutes and a standard deviation of 7.3 minutes. At α=0.05, can the department’s claim be supported assuming the population is normally distributed? No, since p of 0.037 is less than 0.05, reject the null. Claim is null, so is not...
A large national survey shows that the waiting times for fast food restaurants is approximately normally...
A large national survey shows that the waiting times for fast food restaurants is approximately normally distributed with a mean of μ = 4.2 minutes and a standard deviation of σ = 0.9 minutes. A fast food company claims that their mean waiting time in line is less than 4.2 minutes. To test the claim, a random sample of 95 customers is selected, and is found to have a mean of 3.7 minutes. We will use this sample data to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT