4i) Kibble Pet Plus believes that it has a market share of 32 percent of the local dog food market. They survey 100 dog owners and ask whether or not it is their regular source of dog food and 27 people say "yes". Suppose a hypothesis test is made to see, whether Kibble Pet Plus's market share is different from 32%. In this context, committing a Type I error :

a. occurs when they conclude that the percentage of customers usingKipple Pet Plus for their dog food is different from 32% when in fact it is not.

b. occurs when they conclude that the percentage of customers usingKipple Pet Plus for their dog food is 32% when in fact it is not.

c. occurs when they conclude that the percentage of customers usingKipple Pet Plus for their dog food is more than 32% when in fact it is less than that.

d. occurs when they conclude that the percentage of customers usingKipple Pet Plus for their dog food is less than 32% when in fact it greater than that.

4ii) For the same level of type I error, in order to decrease the probability of type II error we can,

a. decrease the sample size, which in turn will increase the standard deviation of the sample.

b. Increase the sample size, which in turn will increase the standarddeviation, and make the normal curve wider.

c. Increase the sample size, which in turn will reduce the standarddeviation, and make the normal curve narrower.

d. Lower the sample mean with respect to the standard deviation.

4iii) Assume you have a hypothesis test for mean:

H₀: = 26

H₁: > 26

You have a sample with a mean of 26.05 and a standard deviation of 10.68. The sample size is 58.Report the t-statistic (test statistic) used to address this test.

(Only round yourfinal answerto2 decimal places.)