Perform the test of hypothesis on the following scenarios. The minimum wage earners of the National Capital Region are believed to be receiving less than Php 5,000.00 per day. The CEO of a large supermarket chain in the region is claiming to be paying its contractual higher than the minimum daily wage rate of Php 500.00 To check on this claim, a labour union leader obtained a random sample of 144 contractual employees from this supermarket chain. The survey of their daily wage earnings resulted to an average wage of Php 510.00 per day with standard deviation of Php 100.00. The daily wage of the region is assumed to follow a distribution with unknown population variance. Perform a test of hypothesis at 5% level of significance to help the labour union leader make an empirical based conclusion on the CEO's claim. Note: pls follow the steps in the photo attached

1) In a survey of 1200 workers, 35% said they eat at home during a typical work week. A) What is the margin of error? B) Give an interval that is likely to contain the exact percent of all workers who eat at home. C) What number of workers responded that they eat at home during a typical work week?

The Food and Nutrition Board of the Institute of Medicine working in cooperation with scientists from Canada have used scientific data to answer this question for a variety of vitamins and minerals.47 Their methodology assumes that needs, or requirements, follow a distribution. They have produced guidelines called dietary reference intakes for different gender-by-age combinations. For vitamin C, there are three dietary reference intakes: the estimated average requirement (EAR),which is the mean of the requirement distribution; the recommended dietary allowance (RDA),which is the intake that would be sufficient for 97% to 98% of the population; and the tolerable upper level (UL), the intake that is unlikely to pose health risks. For women aged 19 to 30 years, the EAR is 60 milligrams per day (mg/d), the RDA is 75 mg/d, and the UL is 2000 mg/d.   (a) The researchers assumed that the distribution of requirements for vitamin C is Normal. The EAR gives the mean. From the definition of the…

According to the CITA- The Wireless Association, the mean monthly revenue per cell phone was $48.79 in 2014. A researcher suspects the mean monthly revenue per cell phone is different today and would like to perform a hypothesis test. A) Explain what it would mean to make a type 1 error B) Explain what it would mean to make a type 2 error

A​ stem-and-leaf plot for the number of touchdowns scored by all Division 1A football teams is shown below. Complete parts​ (a) through​ (c). a) If a team is selected at​ random, find the probability the team scored at least 30 touchdowns. b)if a steam is selected at random,find the probability the team scored between 40 and 48 touchdowns inclusive . c)if a team is selected at random,find the probability the team scored more than 78 touchdowns. are. Any of these events unusual? 1 3 4 5 7 8 8 ​ Key:1|5equals=15 2 0 1 2 2 3 4 5 7 8 8 9 3 0 0 1 1 1 2 2 3 3 4 4 5 5 7 7 7 8 9 4 0 0 1 2 2 3 4 5 5 5 5 6 7 8 8 9 5 0 2 3 5 5 7 8 6 1 3 6 7 7   8 7

You are being consulted by a level 400 psychology student on her final project. Her work entails estimating the proportion of students in University of Ghana who are claustrophobic i.e. having an extreme or irrational fear of confined places. a) What is the population in her case?

A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.040.04 with 9090​% confidence if ​a) she uses a previous estimate of 0.420.42​? ​b) she does not use any prior​ estimates?

The first blank for both questions is: "estimate of the standard ('distance' or 'score' or 'mean')" Second blanks: "...between a ('sample mean' or 'sample mean difference' or 'score')"  Third Blanks: "...and the ('population mean difference' or 'population mean' or sample mean')" The choices are the same for the corresponding blanks, first, second and third.