Find the P-value for the indicated hypothesis test with the given standardized test statistic, z. Decide whether t given level of significance a. Two-tailed test with test statistic z = - 2.40 and a = 0.04 ..... P-value = (Round to four decimal places as needed.)
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- Can you tell me what the solution would be to this one?I need help finding the test statistics and p-value. Please helpA recent study focused on the amount of money single men and women save monthly. The information is summarized here. Assume that the population standard deviations are unknown but equal. Sample Size Sample Mean Sample Standard Deviation Men 25 50 10 Women 30 54 5 At the 0.01 significance level, do women save more money than men? What is the value of the test statistic for this hypothesis test? Multiple Choice +1.819 +2.326 +1.924 +2.399
- ???Two possible p-values are given. Which one provides the strongest evidence against H0? p -value=0.5 p-value=0.06An electrician wants to know whether batteries made by two manufacturers have significantly different voltages. The voltage of 131 batteries from each manufacturer were measured. The population standard deviations of the voltage for each manufacturer are known. The results are summarized in the following table. Manufacturer Sample mean voltage (millivolts) Population standard deviat A 116 3 115 4 What type of hypothesis test should be performed? Right-tailed z-test v What is the test statistic? Ex: 0.12 Does sufficient evidence exist to support the claim that the voltage of the batteries made by the two manufacturers is different at the a = 0.01 significance level? Select v
- 0 123 ess is functioning properly. significance. 5 workers from one company But a general perception is 1 of significance mnle 6.32 Jeffery, a high school swimmer, swims the 25-yard freestyle with a mean time of 16.43 seconds without using goggles. After his father bought him goggles, Jeffery swam the 25-yard freestyle 15 times. After the 15 swims, Jeffery's mean time was 16 seconds and sample standard deviation was 2 seconds. His father thought the goggles helped Jeffery swim faster. Test his father's hypothesis using a 5% level of significance. Assume that the sample of measurements are from a normally distributed population. 6.30 suburb.You wish to test the following claim (Ha) at a significance level of a = 0.002. Ho: P₁ P2 Ha P₁ P2 : You obtain a sample from the first population with 523 successes and 107 failures. You obtain a sample from the second population with 268 successes and 40 failures. test statistic = p-value [three decimal accuracy] [four decimal accuracy]Please answer each item with the same format as the examples given. Thank you.