If a simple random sample of size 34 was collected, the following hypotheses tests will have the same P-value whether the sample maen was 41 or 43?
Q: what would the null hypothesis be if you wanted to test whether a trait segregates in a 9:3:3:1…
A: HypothesisNull Hypothesis (H0) = The data follows the phenotypic ratio (i.e. 9:3:3:1)Alternative…
Q: A researcher designs an experiment in which the single independent variable has five levels. If the…
A: Given A researcher designs an experiment in which the single independent variable has five levels.…
Q: A. Ho: На: B. What is the level of significance? C. Type of Test
A: Here AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPART PLZ REPOST FOR REMAINING PARTS
Q: Which of the following is TRUE? A. As the number of observations increases, tcrit also increases B.…
A: Various statistical techniques, such as the z-test, t-test, chi-square test, and f-test, are…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: GivenMean(x)=63.4standard deviation(s)=15.1sample size(n)=25α=0.025
Q: A simple random sample of size n 200 drivers with a valid driver's license is asked if they drive an…
A: Solution: Given information: n= 200 Sample size of drivers x = 122 drivers drive an American made…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: The null hypothesis (H0) is that the mean time for a technician to arrive is 55 minutes, as claimed…
Q: Is there an association between teenagers with Back pain and Gender? The study was also conducted…
A: It is needed to test, whether there is an association between teenagers with Back pain and Gender.
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: sample size(n)=16Mean()=45.3standard deviation(s)=7.9significance level()=0.05
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: The objective of this question is to test the claim of a customer that it takes more than 40 minutes…
Q: The ?2 value for a one-tailed (upper tail) hypothesis test at 95% confidence and a sample size of 20…
A: Here, n=20. The degrees of freedom is, df=n-1 =20-1 =19
Q: For each of the 2 majors, conduct a full hypothesis test at the 0.01% significance level: Claim: The…
A:
Q: 1. This is an example of a 2. Find the standard error. 3. Find the z value. -- hypothesis test.
A: Given,To find the type of test, standard error, and calculate the z value.
Q: A significance level of .05 means that there is one chance out of ___ that the researcher will…
A: Significance level is also known as the type one error and denoted by α. It indicates the…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A:
Q: If you use a 0.05 level of significance in a (two-tail) hypothesis test, what is your decision rule…
A:
Q: Interpret calculator display: Sa sample of mothers was asked how old they were when their first…
A: Please note that as per our guidelines in a multiple sub-parts question we can answer the first…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: In hypothesis testing, we start by stating the null hypothesis (H0) and the alternative hypothesis…
Q: Some people claim they can tell the difference between diet soda and regular soda in a single sip. A…
A: Given that Sample size =80 Number of participants correct identify the problem=53 We have to find…
Q: Which of the following is TRUE? A. As the number of observations increases, trit also increases B.…
A: There are two methods used to approach the null hypothesis test. They are critical value approach…
Q: According to a Pew Research Center study, in May 2011, 33% of all American adults had a smart phone…
A: In a research study, 33% of American adults had a smartphone. The number of community college…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: The null hypothesis (H0) is that the mean time for a technician to arrive is 55 minutes, as claimed…
Q: An exercise science student believes that during professional rugby games the average distance…
A: Provided that : When reviewing game statistics the student found that the average distance covered…
Q: A simple random sample of size n= 200 drivers with a valid driver's license is asked if they drive…
A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: The objective of this question is to test the claim of a customer that it takes more than 35 minutes…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: Formula :
Q: In a random sample of 100 items,15 are defective. If the null hypothesis is that 15% of the items…
A: Given info: In a random sample of 100 items,15 are defective. The null hypothesis is that 15% of…
Q: Calculate the P-value for a sample of 40 observations with a sample proportion of 0.6 if the null…
A:
Q: According to a Pew Research Center study, in May 2011, 33% of all American adults had smart phone…
A: p=0.33, n=352, X=122
Q: Tutorial Exercise Suppose and are true mean stopping distances at 50 mph for cars of a certain type…
A: Given that H0:μ1-μ2=-10Ha:μ1-μ2<-10m=9n=9s1=5.04s2=5.32
Q: According to a Pew Research Center study, in May 2011, 33% of all American adults had a smart phone…
A: n=352, X=122, p=33% , α=0.05
Q: Suppose that you want to perform a hypothesis test based on a simple random paired sample to compare…
A: a)Requirements for a paired t-test:The samples must be paired sample and drawn randomly from…
Q: One cable company claims that it has excellent customer service. In fact, the company advertises…
A: Given Data: n=4x¯=62.1s=8.3
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A: Solution: Let X1 be the number of men have cars, n1 be the sample number of rich men faculty, X2 be…
Q: If the level of significance in a hypothesis test is 1 %, what would the p-value have to be for…
A: We fail to reject the null hypothesis when the p value is greater than the significance level. We…
Q: Choose chi-square goodness of fit (GOF). Note that the only variable is Integer Chosen. Use a…
A: For The given data, we need do a goodness of fit test.
Q: Twenty years ago, 48% of parents of children in high school felt it was a serious problem that high…
A: Solution Given That, Twenty years ago. 48% of parents of children in high school was a serious…
Q: an automobile engineer claims that 1in 10 automobile accidents are due to driver fatigue . if a…
A: Given: P(Accidents are due to driver fatigue)=p=110=0.10Number of accidents observed =n=5
Q: please answer a, b, c
A: Independent t test are used to test whether the mean significant relationship exist between the two…
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- Answer the given problem below by following in hypothesis testing. Sample problem: Determine the weight of the students before and during the quarantine. Did the students lose more fat before the quarantine? Weight before quarantine: sample mean = 5.9 kg sample standard deviation = 4.1 kg sample size = n = 42 standard error = SEM1 = 4.1/ √42 = 0.633 Weight during quarantine: sample mean = 4.1 kg sample standard deviation = 3.7 kg sample size = n = 47 standard error = SEM2 = 3.7/ √47 = 0.540 measure of variability = sq root [(0.633)2 + (0.540)2] = 0.83 1. Determine the p-value = 0.03 (LOS= 95%; α=0.05) 2. Make a decision 3. ConclusionI need help answering question 9Forbes reports that women in general trust recommendations from Pinterest more than recommendations from any other social network platform. But does trust in Pinterest differ by gender? The following sample data show the number of women and men who state in a recent survey that they trust recommendations made on Pinterest. Sample Trust recommendations made on Pinterest Women 150 117 Men 170 102 We want to determine whether trust in Pinterest differ by gender. Formulate the null and the alternative hypotheses. Use 1 to represent women and 2 to represent men. H0: Ha: Null: p1 – p2 ≥ 0; Alternative: p1 – p2 < 0 Null: p1 – p2 = 0 ; Alternative: p1 – p2 ≠ 0 Null: p1 – p2 ≤ 0; Alternative: p1 – p2 > 0 B. What the test statistics? You probably need to find the pooled proportion first. Pooled proportion is ___________. 0.6 0.78 0.6844 C. Test statistic is ________. 3.46 1.28 66.41 4.36
- Given that a-0.01%, find the Zeit if the hypothesis testing is a two tailed test. O a. Zcrit = 3.8906 and -3.8906 O b. Zerit 1.2816 and -1.2816 O c. Zcrit = 3.0902 and -3.0902 O d. Zcrit = 1.6449 and -1.6449For a paired-sample study design, if the null hypothesis is true, then theoretically what value should be obtained for the sample mean? O Mp<0 O Mp = 0 O Mp20A beer store wanted to test the difference on drinking habits if a younger group of 21-30 years old (n=8) to an older group of 50 to 60 years old (n=10). The store took a survey of beers per year each person had in both groups and found the following data: 21-30 group 50-60 group 50 35 17 64 25 39 88 75 53 61 62 89 36 45 29 35 29 78 State the hypotheses of the study.b. Find the critical t value for this study at an alpha level at α=.05.c. Compute the independent t testd. If significant, perform a percentage of variance test.e. State the results in APA format (numbers and words) and don’t forget to include all parts in the sentence and the direction of the results.
- A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.Children with autism differ significantly from children without autism on tests of varbal ability. repeated measures? or ind. with two tails?One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 45 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 45 minutes for the cable technician to arrive. The customer asks a simple random sample of 25 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 47.9 minutes with a standard deviation of 7.6 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.01 level of significance. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Ho : μ = 45 Ha:μ 45
- A dowser has correctly located water for a well 1 out of 2 times in Jones County. In Jones County, someone who is just guessing has a 40% chance of locating water for a well. Does this sample provide sufficient evidence that the dowser can locate water and is not just guessing?According to a Pew Research Center study, in May 2011, 33% of all American adults had a smart phone (one which the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 323 community college students at random and finds that 134 of them have a smart phone. In testing the hypotheses: Ho: p= 0.33 versus Ha: p > 0.33 Do the hypothesis test. Use a level of significance of a = 0.05; Use the unrounded values in Excel to find the answers for # 3 and #4. 1. I 4. Find the p-value.-- 5. The communication professor should the null hypothesis.You wish to test the following claim (Ha) at a significance level of a = 0.002. 66.2 Ha:µ # 66.2 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of 64.3 and a standard deviation size n 28 with mean x of s 5.2. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value The p-value is... less than (or equal to) a O greater than a
