Statistics and Probability Answers

About how many % of scored distribution is between z=0 and z=1?

Find P(-1.2 <2<-0.2)

Show your solution using the critical value method.

a previous study on the effect of blended learning module on senior high school student's achievement revealed that mean score pi is 85 with standard deviation of 3. juliana, a senior high school statistic teacher, surveyed a class of 30 students test the hypothesis at a 0.10 level of significance

A group of the following students got the following score in a test:6,9,12,15,and 18.compute the mean of the sample mean

(a) state the null and alternative hypotheses, (b) compute the test

statistic, (c) determine the critical value and sketch the rejection region and non-rejection

region in the normal curve.

1. The cahier of a fast-food restaurant claims that the average amount spent by customers for dinner is

Php 120.00. A sample of 50 customers over a month was randomly selected and it was found out

that the average amount spent for dinner was Php 122.50. Construct the critical regions using a 0.05

level of significance to conclude that the average amount spent by customers is more than Php

120.00. Assume that the population standard deviation is Php6.50.

Given the following information, construct the rejection region. Show the solution in

a step-by-step procedure.

1. H 0 : = 84

H a : 84

m= 87, s= 10, n = 35, "\\alpha" = 0.05

A group of the following students got the following score in a test:6,9,12,15,and18 compute the mean of the sample mean

H 0 : = 84

H a : 84

= 87, = 10, n = 35, = 0.05