For each claim below, write: (1) claim in mathematical form; (2) Null hypothesis (Ho); (3) alternative hypothesis (Hp); (4) what tailed test. Use notations MuMz (for mean), PuP2 (for proportion), 01,02 (for standard deviation), Mo (for differences in means for dependenr (i.e., matched pair) samples) (a) Claim: California HS students on an average score lower in the SAT than Massachusetts HS students (1 = California, 2 = Massachuselts) (b) Claim: The proportion of smokers in Texas is the same as that in Oklahoma (1 = Texas, 2 = Oklahoma) (c) Claim: The standard deviation of weights in 8 oz Coke cans is at least

Write your answers for this question on paper and then upload: From sampling 40 taxicab rides in New York City, a survey found that the mean cost of the taxi fare from the sample was $12.04. If the population standard deviation is $8.36, test the claim that the mean cost of a taxicab ride in New York City is less than $15.00. (a) State the null and alternative hypothesis. (b) By hand, find the test statistic z-score. Round to two decimal places. (c) Sketch the sampling distribution labeling the test statistic found in part (b) and compare it to the critical value z-score found in the previous question to make a decision to either reject or fail to reject the null hypothesis. Upload Choose a File

1.  What symbol (letter) do you use in the Ho and Ha if your problem involves means? 2.  What symbol (letter) do you use in the Ho and Ha if your problem involves proportions? 3.  What symbol (letter) do you use in the Ho and Ha if your problem involves standard deviations?

Calculate  the range, variance , and stanard deviation for the following a.4,2,1,0,1  b.1,6,2,2,3,0,3 c.8,-2,1,3,5,4,4,1,3 d.0,2,0,0,-1,1,-2,1,0,-1,0,-3,-2,-1,0,1

Hello, I need help with part e and f. I attached a photo of the data set and questions e and f. I calculated the sample mean in excel and got 60,143. For the sample standard deviation, I got 10,462.38.

You've been asked to determine if there's a meaningful difference in average salaries between Big Cities (cities with 500,000 or more inhabitants) and those with less. (Hint: a difference greater than 1 standard deviation is considered significant for the purpose of this analysis).

O Mastenng Biology |. The college physical education department offered an advanced first aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z-scores for some of the students are shown below. Robert 1.08 Juan 1.88 Haley -1.94 Joel 0.00 Jan -0.96 Linda 1.76 (a) Which of thesc students scored abovc the mcan? (Sclcct all that apply.) O Robert O Juan O Haley O Joel O Jan O Linda (b) which of these students scored on the mean? (Select all that apply.) O Robert O Juan O Haley O Joel O Jan O Linda (c) Which of these students scored below the mean? (Select all that apply.) 1052 AM ORobert 73"F Mostly sunny 7/30/2021 P Type here to search (36

CANVAS NIGHTIN... Proctor book orms - Teams Microsoft Office H... APA Citation Gene... Paraphrasing Tool... COMPLIO Examity :: Home Score: 22.4/43 8/10 answered Question 10 ▼ < Please find the range, sample standard deviation and inter-quartile range (IQR) of the following data set. 26 39 60 69 73 76 93 93 94 96 range = (Please enter an exact answer.) standard deviation (s) = (Please show your answer to one decimal place.) IQR = (Please enter an exact answer.) A new number, 288, is added to the data set above. Please find the new range, sample standard deviation and IQR of the new data set. range = (Please enter an exact answer.) standard deviation = (Please show your answer to one decimal place.) IQR = (Please enter an exact answer.) Which measure of spread is less affected by the addition of the extreme observation? O IQR O standard deviation O Range Hint: Help Video [+] Textbook MacBook Air F6 2 @ F2 W Submit Question 20 F3 #3 LL $ F4 R % 5 F5 T ^ 6 Y & 7 A4 F7 U * CO 8 DII FB ( 9…

3. Here are the ages of my 13 animals (yes this is really true). Treat as a population, find the mean, variance, and standard deviation. Round to three decimal places. Hank: 0.5, Tony: 2, Janice: 2, Scar: 4, Chance: 4, Beth: 6, Josephine: 6, Sassy: 7, Moony: 7, Holyfield: 9, Jeff: 6, Corn Nut: 11, Moo Shoo: 14

3. Use the data set to answer the following. 2 4 7 3 8 4 2 4 5 1 (a) Determine the mean. (b) Determine the median. (c) Determine the mode. (d) Determine the range. (e) Determine the standard deviation by hand. (f) Obtain the five mimber summary.