ZuoTi.Pro
Question

10a 13 Using a table, Angela determined that the area of the shaded section under the normal curve is 0.9162. Assuming this is accurate, select each statement about the value of z that is true. A. It exceeds the value of the mean by no more than one standard deviation. B. It exceeds the value of the mean by more than one standard deviation. u C. It exceeds the value of the mean by no more than 2 standard deviations. D. It exceeds the value of the mean by more than 2 standard deviations. E. It does not exceed the value of the mean.
14 Twenty students were randomly divided into two groups. One group had to spend 15 minutes in a quiet room in total silence; the other group watched a 15-minute long collection of funny videos. Text messages sent by each student in the 10 minutes immediately after the experiment were counted. Based on the dot plot, which statement about the effect of the two experimental conditions is the most accurate? Texing Behavior - students assigned to watching videos students assigned to qulet room O000O number of text messages sent within 1o minutes after treatment A. The two groups showed similar texting behaviors B. The two groups showed substantial differences in texting behavior. c. The data indicates neither clear similarity nor clear differences in texting C behavior
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Good question

The number of text messages sent by students in quite room is greater than number of text messages sent by students watching videos.

However, the pattern looks exact replica where if we add number of message by 6 messages to each student in silent room it will match with text message pattern observed for students watching videos

Thus, pattern wise both are similar

Option A

0 0
Add a comment
Know the answer?
Add Answer to:
10a 13 Using a table, Angela determined that the area of the shaded section under the...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 12 Two packaging styles for a new cookie brand were tested in 20 grocery stores for...

    12 Two packaging styles for a new cookie brand were tested in 20 grocery stores for one week. Ten of these stores were randomly chosen to be stocked with packages of style #1, while the other ten were stocked with packages of style #2. Marketing researchers determined that one style would prove to be clearly better than the other if its median number of packages sold exceeded that of the other by at least 10. Based on this reasoning and...

  • Conduct a hypothesis test for each problem, using the traditional method. Show the 5 steps and al...

    Conduct a hypothesis test for each problem, using the traditional method. Show the 5 steps and all work for each hypothesis test. Be sure you select the correct test to use for each problem. 1. A telephone company claims that less than 30% of all college students have a limited number of text messages per month. A random sample of 150 students revealed that 41 of them have a limited number. Test the company's claim at the 0.01 level of...

  • be accurate please and thanks. Suppose that 30% of all students who have to buy a...

    be accurate please and thanks. Suppose that 30% of all students who have to buy a text for a particular course want a new copy (the 25 purchaser whereas the other of the book found your da (a) what are the mean value and standard deviation of the number who wants mean students standard deviation students t a ) (b) What is the probability that the number who want new copies is more than two standard deviations away from the...

  • Question 12 pts The length of time a person takes to decide which shoes to purchase...

    Question 12 pts The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take less than 6 minutes to select a shoe purchase. Is this outcome unusual? Group of answer choices Probability is 0.88, which is usual as it is greater than 5% Probability is 0.12, which is usual as it is not...

  • The first two questions refer to the following information: Researchers developed an online tool to help...

    The first two questions refer to the following information: Researchers developed an online tool to help ESL students learn prepositions and metaphors. A study measuring academic success in ESL students randomly sampled 100 Spanish speaking ESL students using traditional ESL classes and the new language tool and 81 Portuguese speaking ESL students using traditional ESL classes and the new language tool, and scored them on a common English fluency scale (higher score representing greater degree of fluency). The researchers suspected...

  • A. B. C. D. Construct a confidence interval suitable for testing claim that students taking non...

    A. B. C. D. Construct a confidence interval suitable for testing claim that students taking non proctored tests get higher mean score than those taking proctored tests. ___<µ1 - µ2 < ____ Yes/No____ because the confidence interval contains only positive values/only negative values/zero ______. E. Construct a confidence interval suitable for testing claim that students taking non proctored tests get higher mean score than those taking proctored tests. ___<µ1 - µ2 < ____ Yes/No____ because the confidence interval contains only...

  • Future Time Orientation and Condom Use for AIDS Prevention Background Notes: Researchers administered questionnaires to male college students taking an introductory psychology course. Among ot...

    Future Time Orientation and Condom Use for AIDS Prevention Background Notes: Researchers administered questionnaires to male college students taking an introductory psychology course. Among other things, they measured future time orientation defined as planning ahead for future events and willingness to delay gratification. (Sample item: “I believe that a person’s day should be planned ahead.”) Based on the scores on the future time orientation scale, they split the male students into two groups – one low in future orientation and...

  • 1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value asso...

    1. We reject the null hypothesis only when: a. our sample mean is larger than the population mean. b. the p value associated with our test statistic is greater than the significance level of the test we have chosen. c. our sample mean is smaller than the population mean. d. the p value associated with our test statistic is smaller than the significance level of the test we have chosen. 2. In a study of simulated juror decision making, researchers...

  • i need help on question 3 to 22 please. Midterm ex review. MATH 101 Use the...

    i need help on question 3 to 22 please. Midterm ex review. MATH 101 Use the following information to answer the next four exercises. The midterm grades on a chemistry exam, graded on a scale of 0 to 100, were: 62, 64, 65, 65, 68, 70, 72, 72, 74, 75, 75, 75, 76,78, 78, 81, 82, 83, 84, 85, 87, 88, 92, 95, 98, 98, 100, 100,740 1. Do you see any outliers in this data? If so, how would...

  • Please help me solve this question using the table listed underneath the question. In the book...

    Please help me solve this question using the table listed underneath the question. In the book Advanced Managerial Accounting, Robert P. Magee discusses monitoring cost variances. A cost variance is the difference between a budgeted cost and an actual cost. Magee describes the following situation: Michael Bitner has responsibility for control of two manufacturing processes. Every week he receives a cost variance report for each of the two processes, broken down by labor costs, materials costs, and so on. One...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT