Question

A random sample of 42 cars in the drive-thru of a popular fast food restaurant revealed...

A random sample of 42 cars in the drive-thru of a popular fast food restaurant revealed an average bill of $17.36 per car. The population standard deviation is $5.50. Estimate the mean bill for all cars from the drive-thru with 98% confidence. Round intermediate and final answers to two decimal places.

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

Homework Answers

Answer #1

We have given that,              
              
Sample mean =$17.36      
Population standard deviation=$5.5  
Sample size=42      
Level of significance =1-0.98=0.02      
Z critical value (by using Z table)=2.326      
              
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
at the drive thru window of a local fast food restaurant there is an 85% chance...
at the drive thru window of a local fast food restaurant there is an 85% chance that a customer will be satisfied with the service they received. Consider a random sample of 20 drive thru customers. assuming the results are independent, find the probability that a) at least 19 of the 20 drive thru customers are satisfied with the service they received. P = b)Calculate the mean and standard deviation of the random variable. please show work!!
A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer...
A manager of a fast food restaurant wants the drive-thru employee to ask every fifth customer if he or she is satisfied with the service. Who makes up the population? A. All survey respondents B. The proportion of customers who say they are satisfied with their service C. All customers who use the drive-thru window of this fast food restaurant D. All customers of this restaurant
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​Drive-thru Restaurant    A B C D Order Accurate 337 278 231 123 Order Not Accurate 36 52 40 15 If one order is​ selected, find the probability of getting an order that is not accurate. The probability of getting an order that is not accurate is Use the data in...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​Drive-thru Restaurant    A B C D Order Accurate 338 260 238 141 Order Not Accurate 36 52 32 15 If three different orders are​ selected, find the probability that they are all from restaurant A
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​Drive-thru Restaurant A B C D Order Accurate 327 264 250 133 Order Not Accurate 32 55 38 16 If one order is​ selected, find the probability of getting an order from Restaurant A or an order that is accurate. Are the events of selecting an order from Restaurant A and...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​Drive-thru Restaurant A B C D Order Accurate 322 269 231 141 Order Not Accurate 36 57 39 18 If one order is​ selected, find the probability of getting an order from Restaurant A or an order that is accurate. Are the events of selecting an order from Restaurant A and...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​ ​Drive-thru Restaurant    A B C D Order Accurate 323323 275275 242242 144144 Order Not Accurate 3939 5454 3232 1818 If one order is​ selected, find the probability of getting an order that is not accurate. The probability of getting an order that is not accurate is nothing. ​(Round to...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​Drive-thru Restaurant    A B C D Order Accurate 336 263 242 134 Order Not Accurate 38 59 35 18 If two orders are​ selected, find the probability that they are both from Restaurant D. a. Assume that the selections are made with replacement. Are the events​ independent? b. Assume that...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​Drive-thru Restaurant    A B C D Order Accurate 327 278 241 125 Order Not Accurate 33 59 31 10 If one order is​ selected, find the probability of getting an order that is not accurate or is from Restaurant C. Are the events of selecting an order that is not...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food...
Use the data in the following​ table, which lists​ drive-thru order accuracy at popular fast food chains. Assume that orders are randomly selected from those included in the table. ​Drive-thru Restaurant A B C D Order Accurate 326 260 238 134 Order Not Accurate 33 55 38 18 If two orders are​ selected, find the probability that they are both accurate. Complete parts​ (a) and​ (b) below. a. Assume that the selections are made with replacement. Are the events​ independent?...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT