If you reject H_0: p ≥ 0.9 in a one-tailed test at the 0.05 level then you would definitely Select one: a. None of other answers is necessary true. b. reject H_0: p ≤ 0.9 in a one-tailed test at the 0.05 level. c. reject H_0: p ≥ 0.9 in a two-tailed test at the 0.01 level. d. reject H_0: p = 0.9 in a two-tailed test at the 0.01 level. e. reject H_0: p ≤ 0.9 in a one-tailed test at the 0.01 level

An internet provider is trying to gain advertising deals and claims that the mean time the competitors customers spend online per day is less than 46 minutes. You are asked to test this claim. (A) How would you write the null and alternative hypotheses if you represent the internet provider and want to support the claim? (B) How would you write the null and alternate hypothesis if you represent a competing advertiser and want to reject the claim?

Several years ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women who are 20 years of age or older today results in a mean height of 64.9 inches. (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. A (b) Suppose the P-value for this test is 0.18. Explain what this value represents. (c) Write a conclusion for this hypothesis test assuming an a= 0.05 level of significance. (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. OA. Ho: μ= 63.7 in versus H₁ µ#63.7 in OC. Ho: μ= 63.7 in versus H₁ µ>63.7 in. O E. Ho: p=64.9 in versus H₁ μ‡64.9 in. (b) Suppose the P-value for this test is 0.18. Explain what this value represents. www O B. Ho: μ=64.9 in. versus H₁: μ 64.9 in. OF. Ho: μ= 63.7 in. versus H₁: μ< 63.7 in. O A. There is a 0.18 probability of obtaining a sample mean height of 64.9 inches or taller from a population whose mean…

An IQ test is designed so that the mean is 100 and the standard deviation is 13 for the population of normal adults. Find the sample size necessary"to estimate the mean IQ score of statistics students such that it can be said with 95% confidence that the sample mean is within 3 IQ points of the true mean. Assume that o = 13 and determine the required sample size using technology. Then determine if this is a reasonable sample size for a real world calculation, see The required sample size is. (Round up to the nearest integer.) Would it be reasonable to sample this number of students? O No. This number of IQ test scores is a fairly large number. O Yes. This number of IQ test scores is a fairly small number. O Yes. This number of IQ test scores is a fairly large number. O No. This number of IQ test scores is a fairly small number.