Entries by Grace Wahito

Question 11A computer manufacturer estimates that its cheapest screens will last less than 2.8 years.

March 24, 2020 in /by

Question 11A computer manufacturer estimates that its cheapest screens will last less than 2.8 years. A random sample of 61 of these screens has a mean life of 2.6 years. The population is normally distributed with a population standard deviation of 0.88 years. At α=0.02, what type of test is this and can you support […]

 

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Question 16In a hypothesis test, the claim is μ≤25

March 24, 2020 in /by

Question 16In a hypothesis test, the claim is μ≤25 while the sample of 34 has a mean of 21 and a standard deviation of 5.9. In this hypothesis test, would a z test statistic be used or a t test statistic and why? A)t test statistic would be used as the sample size is less […]

 

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Question 6A scientist claims that the mean gestation period for a fox is 50.3 weeks

March 24, 2020 in /by

Question 6A scientist claims that the mean gestation period for a fox is 50.3 weeks. If a hypothesis test is performed that rejects the null hypothesis, how would this decision be interpreted? A)There is enough evidence to support the scientist’s claim that the gestation period is 50.3 weeks B)There is not enough evidence to support […]

 

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A sample of 20 has a mean of 100 and we can use a standard deviation of 10

March 24, 2020 in /by

A sample of 20 has a mean of 100 and we can use a standard deviation of 10. If we test this at an alpha of 0.05? What would be your conclusion and interpretation? How did you arrive at your conclusion?   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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