
uestion 3 Consider you want to test the following hypotheis Ho:p=20 H1:2<20 a=0.05 You pick a...
You wish to test the following claim (Ha) at a significance level of a =0.05 Ho:p Ha:p<76.8 76.8 You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of 25 with mean M = 70.7 and a standard deviation of SD = 12.8. SIze n= What is the test statistic for this sample? (Report answer aceurate to three decimal places.) test statistic -2.383 What is the p-value for this sample? (Report...
Consider the following hypothesis test Ho:u=115 H1:u<115 a=0.05 A sample of n=6, xbar=110, and s=3.5 Determine the p value (use interpolation):
We want to test the following hypothesis Ho: = 59 H1: > 59 Consider a=0.05. s=1.751 n=6 Formulas Exam 02.pdf T-table Calculate the upper limit for the rejection region (x-bar domain):
We want to test the following hypothesis Ho: u = 60 H1: u 60 Consider a=0.05. S=5.85 n=8 Formulas T-table Calculate the lower limit for the rejection region (x-bar domain)
Consider the hypothesis test Ho : H1 = H2 against H1 : HI # Hz
with known variances oj = 1 1 and oz = 4. Suppose that sample sizes
ni = 11 and n2 = 16 and that X = 4,7 and X2 = 7.9. Use a =
0.05.
Question 1 of 1 < > -/1 View Policies Current Attempt in Progress Consider the hypothesis test Ho: M1 = H2 against H: MM with known variances o = 11...
You wish to test the following claim at a significance level of
α=0.05α=0.05.
You wish to test the following claim at a significance level of a = 0.05. Ho:P = 0.68 H1:P < 0.68 You obtain a sample of size n = 418 in which there are 258 successful observations What is the critical value for this test? (Report answer accurate to 2 decim al places.) What is the test statistic for this sample? (Report answer accurate to 3 decim...
Consider the test of H0 : σ2-5 against H1 : σ2 < 5. Approximate the P-value for the following test statistic. 215.2 and n 12 0.01 < P-value < 0.05 0.25< P-value 0.75 0.5< P-value < 0.9 0.1 < p-value < 0.5 O 0.05<P-value< 0.09
Test the claim that the mean GPA of night students is smaller than 2.8 at the .10 significance level. The null and alternative hypothesis would be: H1 : p < 0.7 H1ιμ>2.8 H1 : μ < 2.8 Ho:p 0.7 Ho:p 0.7 Ho: 2.8 The test is: left-tailed right-tailed two-tailed Based on a sample of 65 people, the sample mean GPA was 2.76 with a standard deviation of 0.05 The test statistic is: decimals) The critical value is: decimals) Based on...
9. Test whether 44 <, at the a = 0.05 level of significance for the given sample data Sample 1 = 39 * =91.2 s=159 Sample 2 n=31 i=111.2 s = 23.0 Fill in all the information below: H: H, rejected? (Answer yes or no) H, accepted? (Answer yes or no) Final conclusion: Is there statistically significant evidence to believe that 14 <,? (Answer YES or NO)
4.) Consider the hypothetical hypothesis test of: VS HA: H1-H2 < 0 Hot-H2 = 0 If we know that sample 1 has a mean of 4.7 with a variance of 4; and sample 2 has a mean of 7.8 and a variance of 6.25 and both samples are of size 16; we are also allowed to assume that both populations sampled from are normal and that the true deviations of each population are equal. Use a 1% level for this...