The test statistic is wrong. Only question B Are freshmen psychology majors more likely to change their major before they graduate compared tofreshmen business majors? 327 of the 605 freshmen psychology majors from a recent study changed theirmajor before they graduated and 326 of the 682 freshmen business majors changed their major before theygraduated. What can be concluded at the a = 0.01 level of significance?For this study, we should use z-test for a population proportiona. The null and alternative hypotheses would be:Ho: p1p2(please enter a decimal)H1: p1p2) (Please enter a decimal)b. The test statisticv= 2.234(please show your answer to 3 decimal places.)c. The p-value =(Please show your answer to 4 decimal places.)d. The p-value is ?V ae. Based on this, we should Select an answerf. Thus, the final conclusion is that ...the null hypothesis.O The results are statistically significant at a = 0.01, so there is sufficient evidence to concludethat the proportion of the 605 freshmen psychology majors who changed their major is greaterthan the proportion of the 682 freshmen business majors who change their major.O The results are statistically significant at a = 0.01, so there is sufficient evidence to concludethat the population proportion of freshmen psychology majors who change their major isgreater than the population proportion of freshmen business majors who change their major.O The results are statistically insignificant at a = 0.01, so there is insufficient evidence toconclude that the population proportion of freshmen psychology majors who change theirmajor is greater than the population proportion of freshmen business majors who change theirmajor.O The results are statistically insignificant at a = 0.01, so there is statistically significantevidence to conclude that the population proportion of freshmen psychology majors whochange their major is the same as the population proportion of freshmen business majors whochange their major.

State the hypotheses. (b) Obtain the value of the test statistic . The value of the test…

Answered: b. The test statistic 2.234 (please…

Math

Statistics

b. The test statistic 2.234 (please show your answer to 3 decimal places.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

Question

The test statistic is wrong.

Only question B

Are freshmen psychology majors more likely to change their major before they graduate compared to
freshmen business majors? 327 of the 605 freshmen psychology majors from a recent study changed their
major before they graduated and 326 of the 682 freshmen business majors changed their major before they
graduated. What can be concluded at the a = 0.01 level of significance?
For this study, we should use z-test for a population proportion
a. The null and alternative hypotheses would be:
Ho: p1
p2
(please enter a decimal)
H1: p1
p2
) (Please enter a decimal)
b. The test statistic
v= 2.234
(please show your answer to 3 decimal places.)
c. The p-value =
(Please show your answer to 4 decimal places.)
d. The p-value is ?V a
e. Based on this, we should Select an answer
f. Thus, the final conclusion is that ...
the null hypothesis.
O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude
that the proportion of the 605 freshmen psychology majors who changed their major is greater
than the proportion of the 682 freshmen business majors who change their major.
O The results are statistically significant at a = 0.01, so there is sufficient evidence to conclude
that the population proportion of freshmen psychology majors who change their major is
greater than the population proportion of freshmen business majors who change their major.
O The results are statistically insignificant at a = 0.01, so there is insufficient evidence to
conclude that the population proportion of freshmen psychology majors who change their
major is greater than the population proportion of freshmen business majors who change their
major.
O The results are statistically insignificant at a = 0.01, so there is statistically significant
evidence to conclude that the population proportion of freshmen psychology majors who
change their major is the same as the population proportion of freshmen business majors who
change their major.

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