The test statistic of z=-2.96 is obtained when testing the claim that p<0.59. Using a significance level of a=0.05. Find the critical value (s)

Select the correct answer below:   0.025< p-value <0.05   0.005< p-value <0.01   p-value <0.005   0.01< p-value <0.025

andomly selected students participated in an experiment to test their ability Co determine when one minute (60 seconds) has passed. Forty students yielded a a sample mean of 56.3 seconds. Assume that o = 6.5 seconds. %3D dents. Is it likely that their mean have an estimate that is reasonably close to 58 seconds?

Is there a relationship between autism and what an infant is fed? To determine if there is, a researcher asked a random sample of mothers what they had fed their infant and they also recorded whether or not the child was autistic. Almost all brands of formula sold in the U.S. are now fortified with DHA (docosahexaenoic acid) and ARA (arachidonic acid). The data are in the table below. Do the data provide enough evidence to show that that what an infant is fed and autism are dependent? Test at the 1% level and round expected values to one decimal place. what an yes (Expected Value) no Row Total yes no infant is (Expected Value) (Observed) (Observed) fed breastmilk 422 428 formula with 1155 1161 DHA/ ARA formula without 14 525 539 DHA/ ARA Column 26 2102 2128 Total H: Hypotheses Ho: Select an answer v and Select an answer v are Select an answer Ha: Select an answer v and Select an answer are Select an answer v Original Claim: Select an answer v

The two pictures correlate. Please answer both. Thankyou

Find the critical value t, for the confidence level c = 0.80 and sample size n=11. | Click the icon to view the t-distribution table. to (Round to the nearest thousandth as needed.)

An airline company is interested in improving customer satisfaction rate from the 66% currently claimed. The company sponsored a survey of 262 customers and found that 184 customers were satisfied. What is the test statistic z? What is the p-value? Does sufficient evidence exist that the customer satisfaction rate is higher than the claim by the company at a significance level of α=0.01 (Y/N)

Even though the population standard deviation is unknown, an investigator uses z rather than the more appropriate t to test a hypothesis at the .05 level of significance.    Is the true level of significance larger or smaller than .05?    Is the true critical value larger or smaller than that for the critical z?

A sample of 87 body temperatures has a mean of 98.7. Assume that σ is known to be 0.5 oF. Use a 0.05 significance level to test the claim that the mean body temperature of the population is equal to 98.5 oF, as is commonly believed. What is the value of test statistic for this testing? (Round off the answer upto 2 decimal places)

The test statistic of z= - 1.66 is obtained when testing the claim that p<0.71. a. Using a significance level of a = 0.01, find the critical value(s). b. Should we reject Họ or should we fail to reject Ho ?