Null and Alternative Hypotheses Assignment/Professional Writing Services

a group of 5 statistic students received the following grades on a test: 81, 74, 62, 92, and 76. an intervention plan is used and the students were hopeful to increase their scores on a retest. they received the following grades in retest: 89, 78, 59, 98 and 75. At the 0.025 significance level, is the intervention plan helpful in increasing the grades?

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a. State the null and alternative hypotheses.

H1           Ho

b. state the decision rule

c. compute the value of the test statistic

d. compute the p-value.

e. what is your decision regarding the null hypothesis? interpret the result.

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