TI-Nspire models automatically detect most points of interest such as x and y-intercepts, maximum values, and minimum values when you are in trace mode. TI-84 Plus models require you to use a series of left and right bounds and guesses to find those same values.

6 0

3 years ago

Elizabeth has a loyalty card good for a 10% discount at her local grocery store. What would her total in dollars and cents be, a

Andre45 [30]

Answer:

$33.84

Step-by-step explanation:

Sale price = price - 10% = 90%

90% = 0.9

37.6(0.9) = $33.84

3 0

3 years ago

Let x be a random variable that represents the pH of arterial plasma (i.e., acidity of the blood). For healthy adults, the mean

dsp73

Answer:

2.304

Step-by-step explanation:

Given that x be a random variable that represents the pH of arterial plasma (i.e., acidity of the blood).

$n=31\\\bar x = 8.6\\s=2.9\\se = \frac{2.9}{\sqrt{31} } \\=0.5209$

$H_0: \bar x =7.4\\H_a: \bar x \neq 7.4$

(Two tailed test at 5% level)

Mean difference = $8.6-7.4=1.2$

b) Here we can use only t test since population std deviation is not known.

df = n-1 = 30

Test statistic t = mean diff/std error = 2.304

p value = 0.028

5 0

3 years ago