Answer:
Rocco doesn't have enough money to buy the golf irons
Step-by-step explanation:
step 1
Find the rest of the money left in the savings account
using proportion
step 2
we know that
The set of golf irons has an original price of $359
Applying 40% discount
100%-40%=60%=60/100=0.60
after the discount the price will be
therefore
Rocco doesn't have enough money to buy the golf irons
Answer:
The degrees of freedom are given by:
The significance level is and then the critical value can be founded in th chi square table we need a quantile that accumulates 0.05 of the area in the right tail of the distribution and for this case is:
And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.
Step-by-step explanation:
We have the followign system of hypothesis:
Null hypothesis:
Alternative hypothesis:
The degrees of freedom are given by:
The significance level is and then the critical value can be founded in th chi square table we need a quantile that accumulates 0.05 of the area in the right tail of the distribution and for this case is:
And if the chi square statistic is higher than the critical value we can reject the null hypothesis in favor of the alternative.