Find the critical z values. Assume that the normal distribution applies.
alphaαequals=0.030.03;
Upper H 1H1
is
pless than<0.280.28
zequals=nothing
(Round to two decimal places as needed. Use a comma to separate answers as needed.)
Find the critical z values. Assume that the normal distribution applies. alphaαequals=0.030.03; Upper H 1H1 is...
Find the critical z values. Assume that the normal distribution applies. Two-tailed test; alphaequals0.05 zequals nothing (Round to two decimal places as needed. Use a comma to separate answers as needed.)
Find the critical z values. Assume that the normal distribution applies. Right-tailed test; alphaequals0.04 zequals nothing (Round to two decimal places as needed. Use a comma to separate answers as needed.)
Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population proportion p at the given level of significance alphaα using the given sample statistics.Claim: pnot equals≠0.290.29; alphaαequals=0.010.01; Sample statistics: ModifyingAbove p with caretpequals=0.270.27, nequals=100100 Can the normal sampling distribution be used? A. No, because nq is less than 5. B. No, because np is less than 5. C. Yes, because both np and nq are greater than or equal to...
Determine the critical t-scores for each of the conditions below. a) one-tail test, alphaαequals=0.01, and nequals=38 b) one-tail test, alphaαequals=0.005, and nequals=10 c) two-tail test, alphaαequals=0.05 and nequals=25 d) two-tail test, alphaα=0.10 and n=13 Click here to view page 1 of the Student's t-distribution table. LOADING... Click here to view page 2 of the Student's t-distribution table. LOADING... a) The critical t-score(s) for a one-tail test, where alphaα=0.01, and n=38 is(are) nothing. (Round to three decimal places as needed. Use...
For each of the following situations, find the critical value(s) for z or t. a)H0: rhoρequals=0.30 vs. HA: rhoρnot equals≠0.30 at alphaαequals=0.01 b)H0: rhoρequals=0.20 vs. HA: rhoρgreater than>0.20 at alphaαequals=0.10 c)H0: muμequals=30 vs. HA: muμnot equals≠30 at alphaαequals=0.10 ; n = 47 d)H0: rhoρequals=0.3 vs. HA: rhoρgreater than>0.3 at alphaαequals=0.05 ; n =350 e)H0: muμequals=40 vs. HA: muμless than<40 at alphaαequals=0.10 ; n=1000 a) The critical value(s) is(are) z* equals=2.58,−2.58. (Use a comma to separate answers as needed. Round to...
A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is different from 0.5. a. Identify the null hypothesis and the alternative hypothesis. Choose the correct answer below. A. Upper H 0H0 : pnot equals≠0.5 Upper H 1H1 : pequals=0.5 B. Upper H 0H0 : pequals=0.5 Upper H 1H1 : pgreater than>0.5 C. Upper H 0H0 : pequals=0.5 Upper H 1H1 :...
According to a lending institution, students graduating from college have an average credit card debt of $4100. A random sample of 40 graduating seniors was selected, and their average credit card debt was found to be $4428. Assume the standard deviation for student credit card debt is $1,300. Using alphaαequals=0.01, complete parts a through c. a) Does this sample provide enough evidence to challenge the findings by the lending institution? Determine the null and alternative hypotheses. Upper H 0H0: muμ...
Consider the following hypotheses. Upper H 0 : p less than or = 0.11 Upper H 1 : p greater than 0.11Given that p overbar= 0.15 , n=140 , and alpha=0.01 , answer the following questions. a. What conclusion should be drawn? b. Determine the p-value for this test. a. Determine the critical value(s) of the test statistic. z Subscript alpha = (Use a comma to separate answers as needed. Round to two decimal places as needed.) Calculate the test...
Determine the critical value(s) for a one-mean z-test. Draw a graph that illustrates your answer. A two-tailed test with alphaαequals=0.110.11. Click here to view Page 1 of the table of areas under the standard normal curve. LOADING... Click here to view Page 2 of the table of areas under the standard normal curve. LOADING... The critical value(s) is (are) nothing . (Round to two decimal places as needed. Use a comma to separate answers as needed.)
The test statistic of z = −3.16 is obtained when testing the claim that pequals=4 divided by 74/7. a. Using a significance level of alphaαequals=0.100.10, find the critical value(s). b. Should we reject Upper H 0H0 or should we fail to reject Upper H 0H0? a. The critical value(s) is/are z ???? (Round to two decimal places as needed. Use a comma to separate answers as needed.)