Researchers thor used a hypothesis test to test the effectiveness of a drug he is developing. he obtained a p-value = 0.005 and concluded that the drug was effective (he used α = 0.05). Suppose the drug does not actually work. Which of the following statements is correct?   thor should not reject the null hypothesis because the p-value is too large. Type I error occurred. Type II error occurred. There was no error. I do not know.

Q: Test the hypothesis using the​ P-value approach. Be sure to verify the requirements of the test.…

A: We have given thatp = 0.4n = 125x = 55significance level (α) = 0.05

Q: The advertised claim for batteries for cell phones is set at 48 operating hours. The operating hours…

A: Hypothesis Test for the ProportionIf the unknown proportion is not expected to be too close to 0 or…

Q: Test the hypothesis using the​ P-value approach.   H0: p=0.90 versus H1: p<0.90 n=150, x=125, α=0.05…

A: Given Data: x=125       n=150 α=0.05   H0: p=0.90 H1: p&lt;0.90   Under H0: x+0.5n-pp(1-p)n~ N(0, 1)

Q: Hercule and Jane are in a dispute over the average amount of time it will take to finish a case. The…

A: There are two types of errors that are likely to be committed during hypothesis testing. Type I…

Q: A gambler is conducting a hypothesis test to determine whether a coin is fair. He has computed a…

A: Solution Given a gambler is conducting a hypothesis test to determine whether a coin is fair. He has…

Q: A decade-old study found that the proportion of high school seniors who felt that "getting rich" was…

A: Given information- We have given that the proportion of high school seniors who felt "getting rich"…

Q: x̅ = 50, µ =43, σ= 12 and n=16 conduct a two-tailed z-test. Use α = .01.

A:

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: Test the claim that less than 40% of people in the United States expect Social Security will be able…

A: Given: n=32 Yes=15 No= 17

Q: Identify the null hypothesis, alternate hypothesis, test statistic, P-Value, conclusion about the…

A: Given Information: Sample size (n) = 85 Sample proportion (p^) = 5.9% = 0.059 Claim:  production…

Q: n a sample of 120 children selected randomly from one town, it is found that 18 of them suffer from…

A: Given: The hypothesis for the proportion of children different from asthma is different from 13%.

Q: What should their null hypothesis be if they want to collect evidence against the manufacturer's…

A: Let p be the proportion of headphones that failed after two days. Let k represents the distribution…

Q: A sample of n = 25 individuals is selected from a population with m = 80 and a treatment is…

A: Given that,  Sample size = 25 Mean (Mu) = 80 According to the given question, the treatment is…

Q: Researcher shiela used a hypothesis test to test the effectiveness of a drug she is developing. She…

A: Given Data:   Null and Alternate Hypothesis: H0: μM=μFHA: μM≠μF   P-value=0.005

Q: You conduct a two-sided hypothesis test (α= 0.05), and obtain a Z-score equal to -2.3 (N is large).…

A:

Q: It has been reported that 60% of the adult population participate in computer hobbies during their…

A: Given : It has been reported that 60% of the adult population participate in computer hobbies during…

Q: (20) A dietitian wishes to see if a person’s cholesterol level will change if the diet is…

A: Dear student, As per the guidelines , I can solve only the first 3 subparts. Kindly repost the…

Q: Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho:…

A: Given that ; Sample size ( n) = 500 X = 430 P = 0.86 Level of significance = 0.05 Here we use one…

Q: (a) a = (Round to four decimal places as needed.) (b) ẞ= (Round to four decimal places as needed.)…

A:

Q: An analyst assesses the procedure for determining the concentration of NaCl in wastewater by…

A: A two tailed Student's t test is performed. n=6

Q: ect or Not State whether the null hypothesis should be rejected on the basis of the given P-value:…

A:

Q: Netflix produces more and more custom content everyday. They are trying to make a decision to cancel…

A: When the given sample size is small we go for a t-test (small sample size means, the sample is less…

Q: (d) For t= - 1.677, should you reject or fail to reject the null hypothesis? O A. Fail to reject Ho,…

A: d)t0=-1.677Given critical region is

Q: n education researcher claims that 57​% of college students work​ year-round. In a random sample of…

A: Solution: Given information: n= 600 Sample size of college students  x=342 Students say they work​…

Q: A sample of freshmen takes a reading comprehension test and their scores are summarized below. If…

A:

Q: Only about 15% of all people can wiggle their ears. Is this percent higher for millionaires? Of the…

A: 1. It can be considered that the sample is collected using a random method.

Q: A student conducts a hypothesis test at alpha = 0.10. If the P-value is 1.62, which of the following…

A: Decision rule:

Q: A sample of n = 40 individuals is selected from a population with µ = 30, and a treatment is…

A: A sample of n = 40 individuals is selected from a population with µ = 30, and a treatment is…

Q: Suppose that we reject a null hypothesis at the 0.02 level of significance. The null hypothesis will…

A:

Q: You do NOT have a significant difference and accept the null hypothesis when: You do NOT have…

A: The objective of the question is to identify the correct condition under which we would accept the…

Q: Suppose that a manufacturer is testing one of its machines to make sure that the machine is…

A: Given information- We have given that a manufacturer is testing one of its machines to make sure…

Q: 00 ト d H_a: p < 0.15 Answered Resa Question 7 Suppose the p-value is 0.075 at a = 0.05. What is…

A:

Q: researcher claims that 30% of individuals who take a particular type of drug will develop side…

A: Sample size n =264 Favorable cases x =67 Sample proportion p^=x/n  =67/264 =0.2538

Q: Identify the null and the alternative hypotheses (NO need to show work in "show work" box). An…

A:

Q: Calculate the test statistic,

A: Given that sample size is n = 76 And number of peoples who said they are confident of meeting their…

Q: Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho:…

A: Given: n=500x=430α=0.05 The null and alternative hypotheses are H0:p=0.88H1:p≠0.88

Q: State whether the standardized test statistic t indicates that you should reject the null…

A: From the provided information, The critical value (t0) = 1.828

Q: A well-known brokerage firm executive claimed that at least 55 % of investors are currently…

A: Given, p = 0.55 x = 30 n = 58         To find, calculate Z test statistic = ?

Q: A sample of n = 200 college students is asked if they believe in extraterrestrial life and 120 of…

A: Two tailed p-value is   P-value =2× one tailed p-value

Q: Find the​ P-value for a​ left-tailed hypothesis test with a test statistic of z=−1.33. Decide…

A: The test statistic for a left tailed test is given.

Q: A statistics student conducts a t-test for difference in means to decide whether there is a…

A: From the provided information, A statistics student conducts a t-test for difference in means to…

Q: (b) Would you recommend a test procedure that uses a = 0.10 or one that uses a = 0.01? Explain. Use…

A:

Q: Also, using α = .05, run a two-tail t-test for one sample to test Ho: µ=283 for the 2009 scores.…

A: Given the null and alternate hypotheses Null Hypothesis: Alternative Hypothesis:

Q: a researcher uses a sample of n=25 individuals to evaluate the effect of a treatment. the hypothesis…

A: From the provided information, Sample size (n) = 25 Level of significance (α) = 0.05 The value of…

Q: The following table contains the number of successes and failures for three categories of a…

A: Given that We have to find p value

Q: A track coach is trying to decide whether to recommend a new running shoe by Converse or his…

A: Assumptions for paired sample t–test: The selected samples are simple random sample. Each…

Q: A sample of n = 25 scores is selected from a population with a mean of μ = 73 , and a treatment is…

A: