Homework Answers
Solution:
Given that,
= 118.65
= 117
n - 160
Test statistic(t)
= (
-
) / s / 
n
= (118.65 - 117) / 8.83 /
160
Test statistic (t) = 2.3637
Add Answer to:
Length of Movies ~ A movie data base claims that the average length of movies is...
Netflix claims that the mean length of American movies is 104 minutes. A film critic thinks...
Netflix claims that the mean length of American movies is 104 minutes. A film critic thinks the movie length published by Netflix should be longer. He sets up a hypothesis test at significance level Alpha = 0.05 He samples 40 American movies. Their mean length is 126 minutes with standard deviation 15 minutes. Part 1: what is the claim? Part 2: what is the critical value? Part 3: what is the test statistic? Part 4: what is the decision? Select...
Marvel movies - Kylie is a Marvel fan and wants to see if the distribution of...
Marvel movies - Kylie is a Marvel fan and wants to see if the distribution of her classmates' favorite marvel movies is different from the one published by rottentomatoes.com. She randomly surveys her classmates. The table below contains the percentages reported by rottentomatoes.com and the observed counts from her random sample. Movie Avengers: Infinity War Others Captain America: The Winter Soldier 17% Guardians of the Galaxy Thor: Ragnarok 36% 11% 8% 28% rottentomatoes.com Percentages Observed Counts 66 36 Kylie conducts...
Segments ~ Clementine is a kind of mandarin introduced into Florida by the United States Department...
Segments ~ Clementine is a kind of mandarin introduced into Florida by the United States Department of Agriculture in 1909. Historically, on average, clementine have 10.25 segments. A fruit lover bought 100 clementine and found that there were 10.66 mean number of segments with a standard deviation of 2.0951. Note: Numbers are randomized in each instance of this question. Pay attention to the numbers in this question. The fruit lover wonders if the actual mean number of segments is more...
3) Segments ~ Clementine is a kind of mandarin introduced into Florida by the United States...
3) Segments ~ Clementine is a kind of mandarin introduced into Florida by the United States Department of Agriculture in 1909. Historically, on average, clementine have 10.25 segments. A fruit lover bought 100 clementine and found that there were 10.69 mean number of segments with a standard deviation of 2.0753. Note: Numbers are randomized in each instance of this question. Pay attention to the numbers in this question. The fruit lover wonders if the actual mean number of segments is...
Question 14 (1 point) Marvel movies - Kylie is a Marvel fan and wants to see...
Question 14 (1 point) Marvel movies - Kylie is a Marvel fan and wants to see if the distribution of her classmates' favorite marvel movies is different from the one published by rottentomatoes.com. She randomly surveys her classmates. The table below contains the percentages reported by rottentomatoes.com and the observed counts from her random sample. Movie Others Avengers: Infinity War Captain America: The Winter Soldier 17% Guardians of the Galaxy Thor: Ragnarok 36% 11% 8% 28% rottentomatoes.com Percentages Observed Counts...
3) A random sample of 35 Hollywood movies made since the years 2010 had a mean...
3) A random sample of 35 Hollywood movies made since the years 2010 had a mean length of 121.6 minutes, with a standard deviation of 20.4 minutes. a) Construct a 98% confidence interval for the true mean length of all Hollywood movies made since 2010. Interpret your answer. b) As of June 2013, three Ironman movies have been released, and their mean length is 127 minutes. Someone claims that the mean length of Ironman movies is less than the mean...
An auto manufacturer claims that the average length of time that one of its cars is...
An auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5% significance level. A. Give the...
For problems 7 and 8, an auto manufacturer claims that the average length of time that...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
For problems 7 and 8, an auto manufacturer claims that the average length of time that...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
Instructor-created question Question Help The local veterinarian claims pugs weigh about 20 lbs on average. You...
Instructor-created question Question Help The local veterinarian claims pugs weigh about 20 lbs on average. You think it may be less To test your hypothesis, you develop hypotheses, Hop=20 versus Hy <20, and record the weights of a simple random sample of 17 pugs. Assume the population of pug weights is known to be normally distributed Answer parts (a)(c) Click here to view the 1-Distribution Area in Right Tail. (a) If your mean sample weight is 18.4 pounds with a...
Marvel movies - Kylie is a Marvel fan and wants to see if the distribution of her classmates' favorite marvel movies is different from the one published by rottentomatoes.com. She randomly surveys her classmates. The table below contains the percentages reported by rottentomatoes.com and the observed counts from her random sample. Movie Avengers: Infinity War Others Captain America: The Winter Soldier 17% Guardians of the Galaxy Thor: Ragnarok 36% 11% 8% 28% rottentomatoes.com Percentages Observed Counts 66 36 Kylie conducts...
Question 14 (1 point) Marvel movies - Kylie is a Marvel fan and wants to see if the distribution of her classmates' favorite marvel movies is different from the one published by rottentomatoes.com. She randomly surveys her classmates. The table below contains the percentages reported by rottentomatoes.com and the observed counts from her random sample. Movie Others Avengers: Infinity War Captain America: The Winter Soldier 17% Guardians of the Galaxy Thor: Ragnarok 36% 11% 8% 28% rottentomatoes.com Percentages Observed Counts...
3) A random sample of 35 Hollywood movies made since the years 2010 had a mean length of 121.6 minutes, with a standard deviation of 20.4 minutes. a) Construct a 98% confidence interval for the true mean length of all Hollywood movies made since 2010. Interpret your answer. b) As of June 2013, three Ironman movies have been released, and their mean length is 127 minutes. Someone claims that the mean length of Ironman movies is less than the mean...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
For problems 7 and 8, an auto manufacturer claims that the average length of time that one of its cars is owned before it requires a major repair is at least seven years. Assume that a survey of ten owners of the manufacture's cars finds that they went an average of 6 years before a major repair and the sample standard deviation for such time lengths was 1.8 years. Use the data to test the manufacture's claim at a 5%...
Instructor-created question Question Help The local veterinarian claims pugs weigh about 20 lbs on average. You think it may be less To test your hypothesis, you develop hypotheses, Hop=20 versus Hy <20, and record the weights of a simple random sample of 17 pugs. Assume the population of pug weights is known to be normally distributed Answer parts (a)(c) Click here to view the 1-Distribution Area in Right Tail. (a) If your mean sample weight is 18.4 pounds with a...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago