In a particular year, 68% of online courses taught at a system of community colleges were taught by full-time faculty. To test if 68% also represents a particular state’s percent for full-time faculty teaching the online classes, a particular community college from that state was randomly selected for comparison. In that same year, 33 of the 44 online courses at this particular community college were taught by full-time faculty. Conduct a hypothesis test at the 5% level to determine if 68% represents the state in question.

Note: If you are using a Student’s *t*-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)

a)State the distribution to use for the test. (Round your standard deviation to four decimal places.)*P’* ~ ___ (____ , ____)

b)What is the test statistic? (Round your answer to two decimal places.)

c)What is the *p*-value? (Round your answer to four decimal places.)

d)Alpha, a=____?

e) Sketch a picture of this situation. Label and scale the horizontal axis and shade the region(s) corresponding to the *p*-value.

f)Construct a 95% confidence interval for the true proportion. Sketch the graph of the situation. Label the point estimate and the lower and upper bounds of the confidence interval. (Round your answers to four decimal places.)

In a particular year, 68% of online courses taught at a system of community colleges were taught by full-time faculty. To test if 68% also represents a particular state’s percent for full-time faculty teaching the online classes, a particular community college from that state was randomly selected for comparison. In that same year, 35 of the 44 online courses at this particular community college were taught by full-time faculty. Conduct a hypothesis test at the 5% level to determine if 68% represents the state in question. Note: If you are using a Student’s *t*-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)

Part 1)State the distribution to use for the test. (Round your standard deviation to four decimal places.)*P’* ~_____ (____,____)

Part 2) What is the test statistic? (Round your answer to two decimal places.)

t or z=______

Part 3) What is the *p*-value? (Round your answer to four decimal places.)

In a particular year, 68% of online courses taught at a system of community colleges were taught by full-time faculty. To test if 68% also represents a particular state’s percent for full-time faculty teaching the online classes, a particular community college from that state was randomly selected for comparison. In that same year, 35 of the 44 online courses at this particular community college were taught by full-time faculty. Conduct a hypothesis test at the 5% level to determine if 68% represents the state in question.

Note: If you are using a Student’s *t*-distribution for the problem, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)

(a) What is the test statistic? (Round your answer to two decimal places.)

(b)Sketch a picture of this situation. Label and scale the horizontal axis and shade the region(s) corresponding to the *p*-value.

(c) Indicate the correct decision (“reject” or “do not reject” the null hypothesis), the reason for it, and write an appropriate conclusion.

(i) Alpha:

? =

? =

(ii) Decision:

reject the null hypothesisdo not reject the null hypothesis

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