We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
Are you struggling to understand the rule or having issues applying it to questions?i need help in cosine rule
Having issues finding your reply between all the ads xDAre you struggling to understand the rule or having issues applying it to questions?
That was not in the options! 😜Having issues finding your reply between all the ads xD
Can you please provide an example question?I have a doubt. How do you know when to use what in the Further Stat questions??? Esp. hypothesis-testing!
For example :Can you please provide an example question?
16-year-old leavers | A-Level leavers | |
Mean | 156 | 164 |
Sample estimate of variance | 673 | 593 |
Sample size | 37 | 28 |
can someone please help with this...?For example :
A college careers officer investigates the income at age 24 of a group of students who left school at 16, and a group who stayed on to take their A-Levels.
The results he finds are summarized in the table.
Show, using a 2-sample t-test, that the hypothesis that those staying on at school have higher incomes at age 24 is rejected, on the evidence of this sample.
16-year-old leavers A-Level leavers Mean 156 164 Sample estimate of variance 673 593 Sample size 37 28
To test the hypothesis, we generally need to find the z-score also known as Test Statistic and then use it to find the p-value.For example :
A college careers officer investigates the income at age 24 of a group of students who left school at 16, and a group who stayed on to take their A-Levels.
The results he finds are summarized in the table.
Show, using a 2-sample t-test, that the hypothesis that those staying on at school have higher incomes at age 24 is rejected, on the evidence of this sample.
16-year-old leavers A-Level leavers Mean 156 164 Sample estimate of variance 673 593 Sample size 37 28
To test the hypothesis, we generally need to find the z-score also known as Test Statistic and then use it to find the p-value.
If \(p>0.05\), this means that the mean values have no difference and the hypothesis is rejected.
Substituting your values in this online calculator, we get \(z=-1.275\) and \(p=0.1036\) and since \(p\) is greater than \(0.05\), we can say the hypothesis is rejected.
P.S. I am not 100% sure about this so please take this with a grain of salt.
Did you find this ebook of Audrey Simpsons ? I also want the same !!Can anyone please upload pdf of these math books which are updated for the 2016 year onwards? Thankyouu
Cambridge O Level Mathematics Coursebook by Audrey Simpson
Cambridge O Level Mathematics
Heather West, Jean Matthews, John Jeskins, Mike Handbury
hi, do any one have this book? I also need this. please help m.Can anyone please upload pdf of these math books which are updated for the 2016 year onwards? Thankyouu
Cambridge O Level Mathematics Coursebook by Audrey Simpson
Cambridge O Level Mathematics
Heather West, Jean Matthews, John Jeskins, Mike Handbury
Second year taking additional math, covered half the syllabus, asking for any important tips before the examAfter the initiative taken by Math_angel in the IGCSE section, I have made this topic for students of O'levels. You can post any question or any problem here and me along with other XPF users will try to help you as soon as possible. This topic is a feasible option as it won't bring a hassle of making new topics for every question and it will also allow the helpers to not miss any of your questions and have one common topic for answering your Mathematics queries.
So start posting your problems.
For almost 10 years, the site XtremePapers has been trying very hard to serve its users.
However, we are now struggling to cover its operational costs due to unforeseen circumstances. If we helped you in any way, kindly contribute and be the part of this effort. No act of kindness, no matter how small, is ever wasted.
Click here to Donate Now