Question

In: Statistics and Probability

Suppose that 32 of the 1500 people that received an email we sent, clicked on the...

Suppose that 32 of the 1500 people that received an email we sent, clicked on the offer image. What is the estimate for the left end point of a 95% confidence interval for the proportion of people in the population that will click on an offer that we send them?

Solutions

Expert Solution

We have given,              
              
x=32          
n=1500          
Estimate for sample proportion=0.0213  
Level of significance is =1-0.95=0.05      
Z critical value(using Z table)=1.96      
              
Confidence interval formula is              


=(0.0140,0.0286)
          
Lower limit for confidence interval=0.0140  
              
Upper limit for confidence interval=0.0286  

Therefore, the estimate for the left end point of a 95% confidence interval =0.0140


orchestra answered 1 year ago
Next > < Previous

Related Solutions

Suppose that 32% of people have a dog, 27% of people have a cat, and 12%...
Suppose that 32% of people have a dog, 27% of people have a cat, and 12% have both. What is the probability that someone owns a dog but not a cat?
A researcher reported that 71.8% of all email sent in a recent month was spam. A...
A researcher reported that 71.8% of all email sent in a recent month was spam. A system manager at a large corporation believes that the percentage at his company may be 78%. He examines a random sample of 500 emails received at an email server, and finds that 367 of the messages are spam. Can you conclude that the percentage of emails that are spam differs from 78%? Use both α=0.05 and α=0.10 levels of significance and the P-value method...
A researcher reported that 71.8% of all email sent in a recent month was spam. A...
A researcher reported that 71.8% of all email sent in a recent month was spam. A system manager at a large corporation believes that the percentage at his company may be 71%. He examines a random sample of 500 emails received at an email server, and finds that 377 of the messages are spam. Can you conclude that the percentage of emails that are spam is greater than 71% ? Use both α=0.10 and α=0.01 levels of significance and the...
I need an opening email format to get people to reply to our survey. We are...
I need an opening email format to get people to reply to our survey. We are doing a skills gap survey and sending it to businesses in our state and need a really good Email to intrigue people into completing our skills gap survey please HELP!!!!!!!!!!!!!! We are going to be distributing the survey via email which is why i need a strongly worded opening paragraph to get the businesses to complete this survey! It has to be professionally written.
According to MessageLabs Ltd., 80% of all email sent in July 2018 was spam. A system...
According to MessageLabs Ltd., 80% of all email sent in July 2018 was spam. A system manager at a large corporation believes that the percentage at his company may be greater than 80%. He examines a random sample of 500 emails received at an email server and finds that 418 of the messages are spam. a. Who/what is the population and what is the parameter of interest? Use the proper notation b. What are the Null and Alternative hypotheses, in...
1. What is the response rate of an online survey sent to 650 email recipients, where...
1. What is the response rate of an online survey sent to 650 email recipients, where 100 email addresses were ineligible, 400 recipients responded to the survey, and 150 refused to participate? (Show all your work) 2.  A department store manager believes that at least half of the households in a test market city contain at least one adult who has visited the store since the new layout was introduced. To conduct online surveys, a researcher working with this manager has...
Asynchronous Communication – What Could go Wrong? Describe a time when an email was sent and...
Asynchronous Communication – What Could go Wrong? Describe a time when an email was sent and it that was not received well. As an alternative approach, describe a time when you received an email and misunderstood its intent. If neither scenario has ever happened to you, describe one in which someone you know experienced one of these situations. Describe what happened as a result of the misunderstood email. Explain how this communication may have been made clearer and thus avoided...
Email from Suresh Batik I received the following email from a former student. I hope you...
Email from Suresh Batik I received the following email from a former student. I hope you are doing well. I took your Managerial Accounting class ten years ago and have a question on how to do costing in a service-based business. Currently, I am working for a firm that manufactures various products used in pipelines (torque wrenches, flange pullers, bolts and flanges, grinding machines, etc.). Five years ago we began servicing pipelines in refineries, offshore/onshore platforms, nuclear plants, etc. Our...
How to organize this email: I am writing this email to let you know that we...
How to organize this email: I am writing this email to let you know that we have been working hard to plan the Gamma Fall Training Conference. It will be held in Miami. Here are the speakers I have lined up for training sessions. I'm thinking that on Tuesday, November 12, we will have Nicole Gold. Her scheduled topic is "Using E-Mail and IM Effectively." Anthony Mills said he could speak to our group on November 13 (Wednesday). "Leading Groups...
A system manager at a large corporation believes that the percentage of spam email received at...
A system manager at a large corporation believes that the percentage of spam email received at his company may be 61%. He examines a random sample of 213 emails received at an email server, and finds that 66% of the messages are spam. Use a significance level of α = 0.07. a.) State the null and alternative hypothesis using correct symbolic form. H0: Answerρμσ Answer=≠<> Answer H1: Answerρμ σ Answer≠<> Answer b.) Is this a left-tailed, right-tailed, or two-tailed hypothesis...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT