In order to test the null hypothesis, the t calculated is equal to: O 3.895 O 3.878 O 3.932 O 3.914
Q: Use the following table to determine whether or not there is a significant difference between the…
A: Manufacturer 1 Manufacturer 2 n1 = 81 n2 = 64 x¯1 =15.80 x¯2 = 15.00 σ1 = 3.00 σ2 =…
Q: Using the same contingency table from the previous question, determine the x statistic using a…
A: Contingency/cross-tabulation or cross tab is a table in a matrix format that displays the…
Q: If α is 0.10 and you find a P-value of 0.08 in your hypothesis test, what would you conclude?
A: It is given that, Value of α is 0.10 and P-value of 0.08
Q: A contingency table test was conducted on the independence of two ways of classication of the…
A: The value of the test statistic is 15.0. Df = (r-1)(c-1) = (4-1) (4-1) = 9.
Q: f. Which hypotheses do we want to test? O Ho: p = 0.05 H1:p+0.05 O Ho: p = 0.05 H1:p>0.05 O Họ: p+…
A: Given p=5%=0.05 Hypothesis Ho: p=0.05 vs H1: p>0.05 Note: According to Bartleby Expert…
Q: A sporting goods store operates in a medium-sized shopping mall. In order to plan staffing levels,…
A: Solution-: Let, M-Monday, S-Saturday Given: We find (a) Hypothesis (b) Test statistic…
Q: Of all the registered automobiles in a city, 10% fail the emissions test. Fifteen automobiles are…
A: Probability that an automobile will fail the emission test (p)= 0.1 Probability that an automobile…
Q: Consider the following hypothesis test: Ho:ps 0.67 Ha: p> 0.67 The p-value is equal to 0.012. Use a…
A: Given ,HO : P ≤ 0.67Ha : P > 0.67 and p-value =0.012α=0.01
Q: How would a person set up the hypotheses if they wanted to test the claim: the mean length of a…
A: Given: The claim is: The mean length of a Pyramid Lake trout is greater than 21 inches. The…
Q: For testing the hypothesis Ho 4=5 versus H: µ>5. And, the value of test statistic z is 2.03. Then,…
A: Given: Z=2.03 for the upper one-tailed test
Q: A test is made of Ho: µ=20 versus H: µ±20. A sample of size n=58 is drawn, and x= 18. The population…
A: Z_test: If the given sample size is more than 30 then that is a large sample test. z test comes…
Q: Let p be the proportion of UCSD students who live on campus. You conduct a hypothesis test to test…
A: Introduction: Denote p as the true population proportion.
Q: What would be the rejection points (R.R.) for a two-tailed z test at a= .01? A) +2.575 B) +1.96 C)…
A: Given information- Significance level α = 0.01 We have given a two-tailed z-test. We have to find…
Q: The results of a hypothesis test are reported as follows: t(15) = 2.70, p < .05. Based on this…
A:
Q: The proportion of mango trees on an island that produce only dwarf fruit is p1. The proportion of…
A: The proportion of mango trees on an island that produce only dwarf fruit is p1. The proportion of…
Q: Suppose tne null nype the cond Dased on the results of the test Six years ago, 12.9% of registered…
A: The null hypothesis: It is a statement of no difference between sample means or proportions or no…
Q: A formal hypothesis test is to be conducted to test the claim that the wait times at the Space…
A: Answer Given a formal hypothesis test is to be conducted to the test wait times at the space…
Q: You collect N = 200 frogs from a pond and find that 120 of them are female. Compute the one-sided…
A:
Q: Suppose the null hypothesis is not rejected. State the conclusion based on the results of the test.…
A: Null hypothesis: Null hypothesis is the statement about parameter of population. Alternative…
Q: To test the hypothesis that eating fish makes one smarter, a random sample of 12 persons take a fish…
A: The descriptive statistics is conducted using EXCEL. The software procedure is given below: Enter…
Q: The results of a hypothesis test are reported as follows in a scientific report: t(15) = 2.70, p <…
A: From the provided information, Degrees of freedom = (n – 1) = 15
Q: A formal hypothesis test is to be conducted to test the claim that the wait times at the Space…
A: The claim is that the wait times at the space mountain ride in Walt Disney World have a mean equal…
Q: Andre recenty found a die (the traditional, six-sided variety) at the park. He took it home and…
A: The correct hypothesis are, H0: The die is a fair die H1: The die has been tampered with. We reject…
Q: Which is the correct null hypothesis of the claim below? “Students take an average of less than five…
A: Given that, Students take an average of less than five years to graduate from college. mu=5…
Q: Identify the null and the alternative hypotheses (NO need to show work in "show work" box). An…
A:
Q: Laura flipped a coin 64 times and obtained 28 heads. To determine if these results suggest that the…
A: From the provided information, Sample size (n) = 64 Out of which 28 heads, that is (x) = 28
Q: In testing the hypotheses Ho: u = 50 vs Ha: u # 50, the following information is known: n-64, x-53.5…
A: Sample size(n)=64Sample mean()=53.5population standard deviation()=10
Q: On a state driver’s test, about 45% pass the test on the first try. We want to test if more than 45%…
A: state driver’s test, about 45% pass the test on the first tryclaim is that to test if more than 45%…
Q: The average life expectancy of tires produced by the Whitney Tire Company has been 45,000 miles.…
A: Given,The average life expectancy of tires produced by the Whitney Tire Company has been 45,000…
Q: A group of students estimated the length of one minute without reference to a watch or clock, and…
A: Given76,90,48,73,53,36,71,75,76,54,75,76,101,99,72sample size(n)=15α=0.01
Q: A mail-order catalog claims customers will receive their product within 4 days of ordering. A…
A: The customer believes that it takes more than 4 days to receive the product. This is the claim of…
Q: A sample of size 40 provided a test statistict = -1.6. Use a = 0.10. The conclusion is:
A:
Q: Which of the following statements is true if when using null hypothesis testing, our p value (in the…
A: Given that the p value is 0.069. Let α=0.05
Q: In a test of the hypothesis Ho: p = 0.6 against H₂: p > 0.6, the power of the test when p = 0.7 is…
A: The test hypothesis are,H0: p = 0.6H1: p > 0.6.This is one-tailed test.
Q: According to a food website, the mean consumption of popcom annually by Americans is 56 quarts. The…
A: From the provided information,The mean consumption of popcorn anually by Americans is 56 quarts that…
Q: What is the p value for Z = 2.4 (for a one sided test)? A)0.0082 B)0.0721 C)0.4918…
A: The p-value for Z = 2.4 (for a one sided test) is obtained by using Excel function “=NORMSDIST(z)”.
Q: Determine the Type l error if the null hypothesis, Ho, is: an electrician claims that no more than…
A: In this question, it has been given that,Ho : No more than 10% of homes in the city are not up to…
Q: An entomologist writes an article in a scientific joumal which claims that fewer than 15 in ten…
A: A : H0 : p= .0015 H1: p<.0015
Q: The degrees of freedom for the T test for single sample are? A) N B) N-2 C) N-1 D) depends on…
A: Degrees of freedom for the T test for single sample are N - 1 Where N is the sample size
Q: 1. For each, state the null and alternative hypothesis and state which is the claim. Use correct use…
A: 1. The null and alternative hypothesis has to find based on the given claims.
![QUESTION 6
Observation
Income ($ x 1000)
Education (Years)
1
30
12
2
28
12
52
18
40
16
35
16
In order to test the null hypothesis, the t calculated is equal to:
O 3.895
O 3.878
O 3.932
O 3.914
N 3 4 5](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F69bcb8e1-9f07-4134-9473-b98b699bef3d%2F8c428175-eb3d-4bd7-b93a-e89908315d5d%2Fgimghj_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Step by step
Solved in 2 steps with 1 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
- How would a person set up the hypotheses if they wanted to test the claim: the mean height of a jump is less than 51 inches? A: Ho µ = 51 in vs HA H> 51 in B: Ho u= 51 in us HA H 51 in vs HA HS 51 in D: Ho H< 51 in vs HA H 2 51 in O C O DAccording to a food website, the mean consumption of popcorn annually by Americans is 59 quarts. The marketing division of the food website unleashes an aggressive campaign designed to get Americans to consume even more popcorn. Complete parts (a) through (c) below. (a) Determine the null and alternative hypotheses that would be used to test the effectiveness of the marketing campaign. Ho H₁ H # 59 (Type integers or decimals. Do not round.) (b) A sample of 832 Americans provides enough evidence to conclude that marketing campaign was effective. Provide a statement that should be put out by the marketing department. P 59 OA. There is sufficient evidence to conclude that the mean consumption of popcorn has risen. OB. There is sufficient evidence to conclude that the mean consumption of popcorn has stayed the same. C. There is not sufficient evidence to conclude that the mean consumption of popcorn has risen. D. There is not sufficient evidence to conclude that the mean consumption of…Which of the following hypothesis is considered one tail test? O a. HO: μ> 80 O b. HO: μ #80 O c. H1: μ ≥ 80 O d. HO: μ ≥80 and H1: μ< 80
- Six different settings are tried on a machine to see if any of them will reduce the proportion of defective parts. For each setting, an appropriate null hypothesis is tested to see if the proportion of defective parts has been reduced. The six P-values are 0.34, 0.27, 0.002, 0.45, 0.03, and 0.19. a) Find the Bonferroni-adjusted P-value for the setting whose P-value is 0.002. Can you conclude that this setting reduces the proportion of defective parts? Explain. b) Find the Bonferroni-adjusted P-value for the setting whose P-value is 0.03. Can you conclude that this setting reduces the proportion of defective parts? Explain.Suppose the null hypothesis is rejected. State the conclusion based on the results of the test. Six years ago, 11.4% of registered births were to teenage mothers. A sociologist believes that the percentage has increased since then. Which of the following is the correct conclusion? O A. There is sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O B. There is sufficient evidence to conclude that the percentage of teenage mothers has increased. O C. There is not sufficient evidence to conclude that the percentage of teenage mothers has remained the same. O D. There is not sufficient evidence to conclude that the percentage of teenage mothers has increased.Styles Font Paragraph Hypothesis Testing for College Tuition Cost D) Calculate the mean and standard deviation of your data set. You may use technology such as Google Sheets, Excel, or a TI-83/TI-84. Round to the nearest hundredth. In this assignment, you will be using inferential statistics to determine if a claim about college tuition cost is accurate. Standard Deviation According to the College Boarď's website, the average tuition cost per year for a public four- year college (in-state cost) is $10,230. Mean & A) Assume that you disagree with the claim. Do you think the average tuition cost is higher? Or lower? E) Using a significance level a = 0.05, find the critical value using the following steps. 1. What are the degrees of freedom? B) Using your answer in part A, write a set of hypotheses (null hypothesis and alternative hypothesis) to represent that claim and its complement. Replace the ?s below with the appropriate inequality signs (,2). Highlight the hypothesis that…
- In a recent study of a random sample of 113 people, 92 reported dreaming in color. In the 1940’s, the proportion of people who reported dreaming in color was 29%. Is there evidence to show that the proportion of people who dream in color is different than the proportion in the 1940’s? What is the p-value for this hypothesis test? A) 6.04 x 10-35 B) 0.8142 C) 0.4071 D) 1.21 X 10-34 E) 12.279An opinion poll asked a random sample of high school couples in the United States whether they believe they will marry their high school sweetheart. A researcher believes more than 25% of high school couples believe they will marry. Which null and alternative hypotheses should be used to test this claim? O Ho: p = 0.25, Ha: p > 0.25 O Ho: p = 0.25, Ha: p 0.25, Ha: p = 0.25 O Ho: P = 0.25, Ha: p > 0.25To a study the effectiveness of an interactive e-book, aresearcher gave 20 students a pre-test, had them studyfrom the e-book, and then gave them a post-test. Thetable below summarizes the data she collected.The researcher conducted a hypothesis test to see if usingthe e book would produce a significant increase in meanscore. What P-value did she find?A) 0.028 B) 0.087 C) 0.091D) 0.094 E) 0.102 Pre-test Post-test Post-test – pre-testMean 78.9 81.4 2.5Standard deviation 6.1 5.5 8.5
- Let p1 be the proportion of residents in Country A coping with depression, and let p2 be the proportion of residents in Country B coping with depression. What is the null hypothesis for a test to determine whether Country A has a greater proportion of residents coping with depression than Country B? Select the correct answer below: H0: p1−p2>0 H0: p1−p2<0 H0: p1−p2=0 H0: p1−p2≠0The average fruit fly will lay 394 eggs into rotting fruit. A biologist wants to see if the average will change for flies that have a certain gene modified. The data below shows the number of eggs that were laid into rotting fruit by several fruit flies that had this gene modified. Assume that the distribution of the population is normal. Round your mean and standard deviation to three decimal places when doing these calculations. 376, 400, 402, 362, 386, 400, 368, 391, 399, 407, 384, 384, 371, 371 Download CSV What can be concluded at the the a = 0.01 level of significance level of significance?Before the furniture store began its ad campaign, it averaged 222 customers per day. The manager is investigating if the average is smaller since the ad came out. The data for the 14 randomly selected days since the ad campaign began is shown below. Round your mean and standard deviation to three decimal places when doing these calculations. 224, 211, 206, 206, 232, 189, 222, 197, 220, 210, 212, 213, 208, 189 Download CSV Assuming that the distribution is normal, what can be concluded at the a = 0.01 level of significance?
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
![Elementary Statistics: Picturing the World (7th E…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
![Introduction to the Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)