Question

Test the claim that the average weight of a new SUV is 1,940 kg, if a...

Test the claim that the average weight of a new SUV is 1,940 kg, if a sample of 301 vehicle weights results in a sample mean of 1,931 kg, with a standard deviation of 61.1 kg. Use a 2% level of significance.

Standard Normal Distribution Table

a. Calculate the test statistic.

z=z=

Round to two decimal places if necessary

b. Determine the critical value(s) for the hypothesis test.

  • +

Round to two decimal places if necessary

c. Conclude whether to reject the null hypothesis or not based on the test statistic.

Reject

Fail to Reject

Please provide correct answers. thanks

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

given data are:-

hypothesis:-

a).the test statistic is:-

b).z critical value for alpha= 0.02 , both tailed test be:-

c).decision:- Reject null hypothesis.

[ ...so, we reject the null hypothesis.]

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