Logo
Home Study Material Contact Search
AI Chat FREE
  1. mathematics
  2. statistics
  3. a teacher instituted a new reading program at scho

A teacher instituted a new reading program at school. After 10 weeks in the​ program, it...

60.1K

Verified Solution

Question

Statistics

A teacher instituted a new reading program at school. After 10weeks in the​ program, it was found that the mean reading speed ofa random sample of 20 second grade students was

94.4 wpm. What might you conclude based on this​ result? Selectthe correct choice below and fill in the answer boxes within yourchoice.

​(Type integers or decimals rounded to four decimal places as​needed.)

A. A mean reading rate of 94.4 wpm is not unusual since theprobability of obtaining a result of 94.4 wpm or more is ____. Thismeans that we would expect a mean reading rate of 94.4

or higher from a population whose mean reading rate is 92 in____ of every 100 random samples of size n=20 students. The newprogram is not abundantly more effective than the old program.

B. A mean reading rate of 94.4 wpm is unusual since theprobability of obtaining a result of 94.4 wpm or more is ____. Thismeans that we would expect a mean reading rate of 94.4

or higher from a population whose mean reading rate is 92 in____ of every 100 random samples of size n=20 students. The newprogram is abundantly more effective than the old program.

Answer & Explanation Solved by verified expert
3.8 Ratings (398 Votes)
92 10 n 20 X 944 Z X n 9449210sqrt20107 Using excel command normsdist107 PX 944 01423 A A    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Zin AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Q

Graph the parabola.y=-3x +24x-44

Geometry
Q

In the triangle ABC side b 9 side c 9 and side a 10 what...

Geometry
Q

The following table shows the length of stay distribution for guests staying at a beach resort,...

Basic Math
Q

HW8#10 A certain drug is used to treat asthma. In a clinical trial of the​ drug,17 of...

Statistics
Q

CHAPTER 13: DISCRETE-TIME SIGNAL (TEXTBOOK SIGNALS AND SYSTEM BY MAHMOOD NAHVI) 12. In an LTI system, x(n)...

Electrical Engineering
Q

Which of these evolutionary trees depicts a different evolutionary history than the others GBDE G...

Biology
Q

f the following items which would be recorded as a debit in the U S...

Basic Math
Q

The distribution of total body protein in healthy adult men is approximately Normal, with standard...

Basic Math
Q

Rewrite as a radical and then simplify: (-32)3/5Provide your answer below:

Algebra
Q

Misty Reno, a beginning accounting student, believes debit balances are favorable and credit balances are...

Accounting
Q

The following information about the work-in-process inventory pertains to the Remington Plant for the month...

Accounting
Q

A company's beginning Work in Process inventory consisted of 26,000 units that were 20% complete...

Accounting