Apsychology researcher has a theory that predicts women will tend to carry more cash than men. a random sample of ersatz university students revealed that 16 females had a mean of $22.30 in their wallets with a standard deviation of $3.20, while 16 males had a mean of $17.30 with a standard deviation of $9.60. the test statistic for the researcher’s hypothesis is:

t=5.59

Step-by-step explanation:

We assume that the money in wallets of women and men are normally distributed.

Given : Sample size of females :

Sample mean :

Standard deviation :

Sample size of males :

Sample mean :

Standard deviation :

Since sample size is small (<30), so we use t-test.

The test static for difference of two population mean is given by :-

Hence, the test statistic for the researcher’s hypothesis is : t=5.59

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.