![xxaurorabluexx](/avatars/10999.jpg)
xxaurorabluexx
29.03.2020 •
Mathematics
A linear function and an exponential function are shown below.
2
11.2
10.0" ¿
Over which interval does the growth rate of the exponential function exceed the growth rate of the linear function?
Solved
Show answers
More tips
- L Leisure and Entertainment How to Choose a Program for Cutting Music?...
- A Auto and Moto How to choose the right drive for your BMW...
- L Leisure and Entertainment How to Choose the Perfect Gift for Men on February 23rd?...
- H Health and Medicine How to Treat Whooping Cough in Children?...
- H Health and Medicine Simple Ways to Lower Cholesterol in the Blood: Tips and Tricks...
- O Other How to Choose the Best Answer to Your Question on The Grand Question ?...
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
Answers on questions: Mathematics
- M Mathematics Taki and connor invest $20 in drink mix, sugar, and paper cups for a lemonade stand. after 5 hours they have made $50 in profits. assume that they sell the drinks at the same...
- M Mathematics At a certain car dealership, the probability that a customer purchases an SUV is . Given that a customer purchases an SUV, the probability that it is black is . What is the probability...
- M Mathematics Aone day trip to new york, mary spent $6.25 for breakfast and 8.95 for lunch. she can spend no more than an average of $8.50. how much did she spend for dinner to stay in budget...
- H History Who was the first christian ruler of rome...
- M Mathematics How long does it take you and students 2 and 3 to clean up a 12 ft. X 12 ft wall covered in graffiti? Besides the answer (be specific on your units), explain or show the math...
Ответ:
The null and alternative hypotheses:
H0: attitudes between first survey and second survey have not changed.
H1:attitudes between first survey and second survey have changed.
Let's find the observed and expected value using the following:
Observed value = sample size * observed proportion
Expected value = sample size * expected proportion.
Optimistic:
expected= 6%*380=22.8
observed=1%*380=3.8
(fo-fe)²/fe = 15.83333
Slightly Optimistic:
expected: 29%*380=110.2);
Observed: 30%*380= 114
(fo-fe)²/fe = 0.131034
Slightly Pessimistic:
expected= 24%*380= 91.2
Observed = 28%*380=106.4
(fo-fe)²/fe = 2.533333
Pessimistic:
Expected = 41%*380 =155.8
Observed = 41%*380 =155.8
(fo-fe)²/fe = 0
Total (fo-fe)²/fe =
15.83333 + 0.131034 + 2.533333 + 0 = 18.4977
Degrees of freedom, df = 4 - 1 = 3
For chi square test statistic:
Σ(fo-fe)²/fe = 15.83333 + 0.131034 + 2.533333 + 0 = 18.498
Calculate pvalue.
Calculating for pvalue at, df = 3, chi-square score = 18.4977, α=0.05
Pvalue = 0.000347
Decision:
Since pvalue, 0.000347 is less than significance level, 0.05, reject null hypothesis H0.
Conclusion:
There is enough evidence to conclude that there is a change in attitudes between first survey and the second survey at a level of significance, 0.05.