If a researcher is using at statistic to test a null hypothesis about a population, what information is needed from the population to calculate the t statistic? O a. You must know the population mean O b. You must know the population mean and the variance or standard deviation O. You must know the population variance or standard deviation O d. The t statistic does not require any information about the population

Q: xp X = 49

A:

Q: 32four - 23four=

A:

Q: julia used 36 cups to make a peramid if tyson used 15 fewer cups than julias how many did tyson use

A: Lets say Tyson used 'x' cups

Q: 245,4

A: Given that 245u4v4

Q: How many multiples of 17 are greater than -50 and less than 50

A: We have to find number of multiples of 17 greater that -50 and less than 50.

Q: determine the value of 25P2.

A:

Q: Complete the table

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Q: Find a b. a = (3.5, 0.2), b = (-5, 4)

A: The given vectors  and .The aim is to find the value of the dot product .

Q: ssume that a sample is used to estimate a population proportion p. Fin ample of size 157 with 52…

A: Given that  Sample size n =157 Favorable cases x =52 Sample proportion p^=x/n =52/157 =0.3312

Q: 323four-211four=?

A:

Q: 32four - 24four=

A: Given The given expression is 324-244.

Q: True or False and explain why. Just number 4

A: 4) to write the true or false

Q: find the number of women

A: Given: z = 1.67 It is given that, Person J’s finishing time is 1.67 standard deviation faster than…

Q: im Cesx X200 2.

A:

Q: 40% of 60 is

A: We have given to find  40% of 60  So, 40% of 60 = 40100×60 = 24

Q: Bottom answer is wrong, please fix

A: Given data :  The speeds of vehicles on a highway with speed limit 110 km/h are normally distributed…

Q: 4x3(divied by 13=

A:

Q: 36 please

A: Given rt=cost i +sint j +2t k  ,  t=π3