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Explain one sample Z test for p-value approach. Find out the test statistic P-value, and critical value, and state the final conclusion. The mean IQ score of statistic professors is less than 120. Sample data: n = 46. Suppose that = 17, and the significance level is = 0.05.
Compute the test statistic. (Round to the nearest hundredth)
Find the P-value. (Round to four decimal places)
Find the critical value. (Round to the nearest thousandth)Choose the final conclusion
A. There is enough evidence to support claimB. There is insufficient evident to support claim
Formulate the null and alternative hypotheses for this application.
At the .01 level of signiicance, is the true mean greater than 10?
There are three flight phases. At α = 0.05, is the cockpit noise level independent of flight phase?
When a sample mean is greater than the true, population mean, the resulting difference is called:
Compare value of test statistics F obtained in part(2) with value of t 2 , square of test statistic for testing H 0 : β 1 =0 that was needed in test null hypothesis that true slope is 0. Interpret the results of this test.
It has been evaluated that 30% of all farms are family-owned. In sample of 12 farms, determine the probability that exactly 3 farms are family owned?
Claculate the exponential also adjusted exponential smoothing forecast and linear trend forecasting. The hotel has experienced the following occupancy rates for the past 9 years.
Why can not we just do several two sample tests like we did in the last week. In your own words explain briefly also tell us what these are and what did it mean.
Show the graph of the probability density function for flight time.
Does this result support original claim, or is population percentage considerably less than 45%. Use alpha=.05 for level of significance.
For each of the following two scenarios/descriptions (pp.2), please select two responses, one to indicate the most appropriate test of inference
In what height interval must the company expect to determine middle 70% of kindergarteners?
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