b. Determine the critical value(s) for the hypothesis test. c. Conclude whether to reject the null hypothesis or not based on th O Reject O Fail to Reject 8 ✓ Search SAMSUNG SUBMIT QUESTION W SAVE PROGRESS

2. Forty-five percent of the entering CSUN freshmen in Fall 2019 were proficient in math. www.csun.edu/counts/new_first_time_freshman.php a. You want to see if the percentage is different for this fall's entering freshmen. Your hypotheses are Ho: На: where p stands for the percentage of freshmen who were proficient in Fall 2019 / this fall. b. Suppose that the null hypothesis is true that the percentage is 45% for this fall. Here is the sampling distribution of the values of p that would be expected if you repeatedly took random samples of 150 freshman entering this fall and found the proportion proficient in math. From the sketch alone, estimate the mean and the SE 0.33 0.37 0.41 0.45 0.49 0.53 0.57 If the null hypothesis is true, would it be unusual to get 50% in your sample who were proficient in mathematics? Explain: If the null hypothesis is true, would it be unusual to get 45 freshmen in your sample who were proficient in mathematics? Explain: c. You take a random sample of 150…

if H0: u1=u2 and H1: u1=/= u2. then is it a right tail test or left?

Find the P-value with z-score (1) if doing a right-tail hypothesis test

Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be overturned only if there is evidence against it. Which of the statements below might represent a null hypothesis? dlo O Increased benefit offerings improved the quality of job candidates. O The defendant is not guilty. O The defendant is guilty. Continue Submit Assignment © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center| Accessibility MacBook Air 80 888 DII DD F2 F3 F4 F5 F7 F9 F10 %23 & 3 4 5 6 9 * 00

A recent study at a university showed that the proportion of students who commute more than 15 miles to school is 25%. Suppose we have good reason to suspect that the proportion is greater than 25%, and we carry out a hypothesis test. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. Ho: 0 H;: D O

what is the correct choice

A telephone company claims that the service calls which they receive are equally distributed among the five working days of the week. A survey of 111 randomly selected service calls was conducted. Is there enough evidence to refute the telephone company's claim that the number of service calls does not change from day-to-day? Days of the Week          Number of CallsMon                                        15Tue                                          21Wed                                         26Thu                                          31Fri                                            18 A)State the null and alternative hypothesis. B)What does the null hypothesis indicate about the proportions of service calls received each day? C) State the null and alternative hypothesis in terms of the expected proportions for each category.