5. If a researcher rejects a true null hypothesis, she has made a error.
Q: Formulate the appropriate null and alternative hypothesis.
A: Given: μ=555σ=139n=30
Q: Why can we never accept the null hypothesis
A: Accepting null hypothesis means we are sure that null hypothesis is true. But we cannot we sure. We…
Q: In statistics why can't we accept the null hypothesis?
A: To perform a hypothesis test, it is first necessary to define an assumed set of conditions…
Q: 4. A researcher is interested in whether daily positive affirmations can lead to positive academic…
A: In testing of hypothesis, there are two hypotheses - null and alternative. The null hypothesis must…
Q: If the null hypothesis is false and the researchers do not reject it, a Type I error has been made.…
A: We know that- Type I error- Rejecting the null hypothesis when it is actually true. Type II error-…
Q: if the null hypothesis should be rejected and researchers reject it they have committed.? which of…
A: Type I error: The type I error is the rejection of the null hypothesis when it is actually true.…
Q: A decision to reject the null hypothesis means you have demonstrated that the treatment has no…
A: Given problem Given that A decision to reject the null hypothesis means you have demonstrated…
Q: Be able to determine the null hypothesis from a description of an experiment?
A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…
Q: What does it mean if you reject the null hypothesis? What do you mean if you fail to reject the null…
A: The null hypothesis is denoted by H0 and alternative hypothesis is denoted by H1 . The null…
Q: Explain what it means to accept the null hypothesis?
A: We need to define null and alternative hypothesis.
Q: State the researcher’s null and alternative hypothesis
A: The hypothesized mean is 1,056.
Q: what is the correct null hypothesis?
A: The null hypothesis states that the model is not useful because all the coefficients are zero. That…
Q: Explain what it means to reject the null hypothesis or fail to reject the null hypothesis.
A:
Q: In most experiments, researchers would prefer to fail to reject the null hypothesis. Is this…
A: In the statistical hypothesis, the test statistic value lies either in the rejection region or in…
Q: what is the alternative and null hypothesis for this question
A: Given that To conduct hypothesis for the relationship between sexual gender and preference for the…
Q: Describe the relationship between the null and alternate hypothesis?
A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…
Q: When a researcher rejects a null hypothesis and he should have reject it what can of error has…
A: Hypothesis:Hypothesis is an assumption about the parameter of the population which will be made on…
Q: ecide whether to reject or fail to reject the null hypothesi
A: Given that,
Q: when do we reject the null hypothesis?
A: Hypothesis: Hypothesis is an assumption about the parameter of the population which will be made on…
Q: If the null hypothesis is not rejected when the null hypothesis is in error, what type of error, if…
A: In this case, null hypothesis is not rejected.
Q: State the null hypothesis
A: Solution Is Null hypothesis is H0: sigma = 5 Alternative hypothesis is Ha: / sigma = 5
Q: Which of these is NOT a correct null hypothesis? H0: p1-u2 = 0 HO: p1<µ2 O HO:p1=u 2
A: We have given that the different null hypothesis. Here, need to find the wrong null hypothesis from…
Q: Can hypothesis testing ever prove a hypothesis true? How should we interpret an experiment where we…
A: In general, we perform to two types of hypothesis test. First, we have to find whether the test is…
Q: 2. In a study of smokers who tried to quit smoking with nicotine patch therapy, 39 were smoking one…
A: We want to tell you null hypothesis.
Q: What is a null hypothesis?
A: Hypothesis:Hypothesis is an assumption about the parameter of the population which will be made on…
Q: 5. Conclusions True or false: In hypothesis testing, it is never valid to form a conclusion of…
A: Given Statement: In hypothesis testing, it is never valid to form a conclusion of supporting the…
Q: One sample test For sample of protein powder, I measured the grams of protein. According to the…
A: Given: μ = 50 grams n = 25 Formula Used: Test-statistic t = X-μsn
Q: Eysenck (1974) ran a study in which participants were required to recall a list of words. The…
A: 1. Here we need to perform a one-way ANOVA on the given data. Here we use Excel to perform the…
Q: Explain why accepting the null hypothesis is not a possible outcome.
A: Hypothesis:- A statistical hypothesis is some assumption or claim about the population.
Q: Can you state the null hypothesis H0 and the alternative hypothesis H1?
A: It is given that the proportion p of residents in a community who recycle has traditionally been…
Q: 2. You want to propose your long time best friend. But you are scared to do so fearing rejection.…
A: The null and alternative hypothesis are defined as : Null hypothesis is a statement regarding the…
![5. If a researcher rejects a true null hypothesis, she has made a
error.
А. Туре !
В. Туре II
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- The body weight of a healthy 3-month old colt should be about u = test the claim that the weight of a wild Nevada colt (3-months old) is more than 60 kg. 60kg. Suppose you want to State the null and alternate hypothesis: A: Ho u= 60 kg us HA H 60 kg D: Ho u= 60 kg vs HA H< 60 kg D.17.If null hypothesis is false because a drop has occurred, then the observed z will be?
- 2. Forty-five percent of the entering CSUN freshmen in Fall 2019 were proficient in math. www.csun.edu/counts/new_first_time_freshman.php a. You want to see if the percentage is different for this fall's entering freshmen. Your hypotheses are Ho: На: where p stands for the percentage of freshmen who were proficient in Fall 2019 / this fall. b. Suppose that the null hypothesis is true that the percentage is 45% for this fall. Here is the sampling distribution of the values of p that would be expected if you repeatedly took random samples of 150 freshman entering this fall and found the proportion proficient in math. From the sketch alone, estimate the mean and the SE 0.33 0.37 0.41 0.45 0.49 0.53 0.57 If the null hypothesis is true, would it be unusual to get 50% in your sample who were proficient in mathematics? Explain: If the null hypothesis is true, would it be unusual to get 45 freshmen in your sample who were proficient in mathematics? Explain: c. You take a random sample of 150…please help me understand the problemAccording to the Centers for Disease Control, 15.2% of American adults experience migraine headaches. Stress is a major contributor to the frequency of and intensity of headaches. A massage therapist fells that she has a technique that can reduce the frequency and intensity of migraine headaches. Determine the null and alternative hypotheses. ОНо: р — 0. 152 Ha : p+ 0. 152 O Ho : p= 0. 152 На : р 0. 152 O Ho : p = 0. 152 Ha : p> 0. 152
- We want to test if the mean life expectancy of Siberian huskies is at least 14 years of age. State the null and alternative hypotheses and determine the claim. H,: µ 14 (claim) B) H,: µ 14 (claim) H,: p 2 14 (claim) O D) H,: µ < 14We want to test if the mean life expectancy of Siberian huskies is at least 14 years of age. State the null and alternative hypotheses and determine the claim. H,: µ 14 (claim) B) H,: µ 14 (claim) H,: H 2 14 (claim) O D) H,: µ < 14According to the Centers of Disease Control, about 20% of American young people between the ages of 12 and 19 are obese. A student claims that the students his local schools are in better'shape than the national average, so'their proportion of obese students is less than 30%. Which are the appropriate null and alternative hypotheses for this study? Оно: р - 20%, Н р 20% Check Answer Cip
- If the probability of rolling a die and getting a five is 1/6, what is the probability of rolling two dice and getting two fives? You can leave your answer as a fraction. 1/6 2/6 1/36 1/12 1/18Q6. In the following diagram: Họ: µ = 4 ; H1: µ= 1. f(X) Ho Xp Rejection region Non-rejection region Examine the probabilities represented by the regions, a,b and c. Identify the incorrect statement: A. a = Pr(Type I error 'AND’ Not-Type II error). B. a +b = Pr(Type I error). С.с 3D Pr(Туpe Il error). D. a + b + c = Pr(Type I error 'OR’ Type II error) %3D A. A В. В С. С O D. DWe can make a causal claim from the results of the chi-square test ? tru or false