Which of the following is not needed to compute t statistic?

1. a hypothesized value for the population mean
2. the value of the population variance or standard deviation
3. the value of the sample mean
4. the value of the sample variance or standard deviation

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)